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1、[单选题]I had just started back for the house to change my clothes ________ I heard voices.
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A.as
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B.when
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C.after
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D.while
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2、[单选题]Liquids are like solids ________ they have a definite volume.
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A.in that
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B.for that
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C.with that
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D.at that
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3、[单选题]Language is a city ________ every human being brought a stone to the building of the city.
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A.which
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B.that
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C.it
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D.this
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4、[单选题]Helen was much kinder to her youngest child than she was to the others,______of course,made the others jealous.
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A.who
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B.that
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C.what
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D.which
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5、[单选题]We were struck by the extent ________ which teachers’decisions served the interests of the school rather than those of the students.
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6、[单选题]You see the lightning ________ it happens,but you hear the thunder later.
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A.the instant
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B.for an instant
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C.on the instant
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D.in an instant
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7、[单选题]I carry only enough money to make change for a ______ bill.
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A.tens-dollar
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B.ten-dollar
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C.ten-dollars
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D.tens-dollars
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8、[单选题]It is useful to be able to predict the extent ________ which a price change will affect supply and demand.
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9、[单选题]In some countries,________ is called“equality”does not really mean equal rights for all people.
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A.which
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B.what
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C.that
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D.one
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10、[单选题]They usually have less money at the end of the month than ________ money at the beginning.
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A.which is
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B.which was
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C.they have
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D.it is
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11、[单选题]Careful surveys have indicated that as many as 50 percent of patients do not take drugs ________ directed.
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12、[单选题]Early to bed and early to rise ______ a man healthy,wealthy and wise.
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A.make
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B.had made
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C.makes
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D.will make
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13、[单选题]Scientists say it may be five or ten years ________ it is possible to test this medicine on human patients.
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A.since
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B.before
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C.after
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D.when
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14、[单选题]Last summer I took a course on ______
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A.how to make dresses
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B.how dresses to make
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C.how to be made dresses
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D.how dresses to be made
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15、[单选题]By success I don’t mean ________ is usually thought of when that word is used.
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A.what is
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B.that we
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C.as you
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D.all is
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