[单选题] You don't look so well, Mary.What's the matter with you? --Why?___________.

1、[单选题]_________ she couldn't understand was__________ fewer and fewer students showed interest

• A、in her lessons.
• B、What; why
• C、That ; what
• D、What ; because

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2、[单选题]Please __________why you're so late," said his girlfriend.

• A、excuse
• B、explain
• C、apologize
• D、tell

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3、[单选题]The girl__________ on the ground __________to me that she had___________ the book on the shelf.

• A、lying ; lay ; laid
• B、lay ; lied ; laid
• C、lie ; lied ; lay
• D、lying; lied ; laid

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4、[单选题]I don't think we have met before.
--Yes, once at a party, but we___________.

• A、weren't introduced
• B、didn't introduce
• C、haven't introduced
• D、were not introducing

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5、[单选题]My uncle___________ until he was forty-five.

• A、married
• B、didn’t marry
• C、was not marrying
• D、would marry

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