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1、[单选题]No one really knows who composed this piece of music,but it has been ______to Bach.
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A.identified
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B.associated
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C.referred
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D.attributed
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2、[单选题]Following two days of shooting along their borders,the two countries have diplomatic relations.
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A.broken down
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B.put down
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C.broken off
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D.put off
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3、[单选题]I have got a loaf of bread ; now I’m looking for a knife ______.
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A.to cut it with
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B.to cut with it
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C.with it to cut
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D.with it cutting
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4、[单选题]As it turned out to be a small house party,we so formally.
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A.need not have dressed up
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B.must not have dressed up
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C.did not need to dress up
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D.must not dress up
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5、[单选题]Mary is a conscientious student;she works very hard and is ______to her teachers.
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A.respected
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B.respectable
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C.respectful
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D.respecting
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6、[单选题]Some companies have introduced flexible working time with less emphasis on pressure.
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7、[单选题]X-rays are able to pass through objects and thus make details that are otherwise impossible to observe.
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A.it visible
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B.them visible
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C.visible
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D.they are visible
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8、[单选题]I’m going to get my letters tomorrow afternoon if I can get them ready today.
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A.type
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B.to type
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C.typed
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D.typing
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9、[单选题]The children will not be allowed to come with us if they don’t ______themselves better.
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A.direct
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B.declare
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C.act
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D.behave
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10、[单选题]Before he fell into the river, he took hold of a small tree on the bank by ______.
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A.inspiration
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B.instance
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C.instinct
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D.instruction
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11、[单选题]The new ______ machine is a great help in the production of this factory.
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A.adequate
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B.sufficient
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C.efficient
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D.effective
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12、[单选题]There is no point to remember all those names and addresses.The most important thing is to understand the events associated with them.
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A.to try
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B.to be trying
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C.trying
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D.be trying
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13、[单选题]He is very rich,so he.
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14、[单选题]Most of us agree that swimming is more enjoyable in such a fine day than novels under the tree.
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A.reading
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B.to read
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C.being reading
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D.to be reading
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15、[单选题]The new regulation does not_until the firstof March.
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A.take into account
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B.go into effect
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C.carry into
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D.put into
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