She always finishes her homework on time. She ________ leaves it for tomorrow.

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－Your city looks beautiful!

－Yes. Lots of trees and grass ________ last year.

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Now the air in our town is ________ than it used to be. Something must be done to stop it.

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－Can you come and give us a talk on Thursday or Friday?

－I'm afraid ________ day is possible.

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－Excuse me, sir. ________ is it to the nearest hotel?

－About 15 minutes' walk along this road.

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I met Mr Green ________ I was walking across the bridge, but I didn't say hello to him.

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The two children bought some books ________ the money they had saved.

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Linda, there's somebody knocking at the door. Go and see who ________ is.

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Would you please tell me ________ next, Mr Wang?

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I ________ this book for two weeks. I have to return it now.

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