[单选题] John shut everybody out of the kitchen ____ he could prepare his grand surprise for the party.

1、[单选题]Mother was out.I ______ look after my little brother.

• A、have to
• B、mustn’t
• C、need
• D、had to

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2、[单选题]It was not until he arrived at the station ________ he realized he had forgotten his ticket.

• A、that
• B、before
• C、when
• D、after

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3、[单选题]________ men have learned much from the behavior of animals is badly new.

• A、That
• B、Those
• C、What
• D、Whether

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4、[单选题]We were struck by the extent ________ which teachers’decisions served the interests of the school rather than those of the students.

• A、to
• B、for
• C、in
• D、with

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5、[单选题]We have studied English for only one year,______ we can perform English short play already.

• A、for
• B、and
• C、yet
• D、or

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