They ran to the policeman ________ they could.

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That woman ________ tired, doesn't he?

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Mr. Smith was just falling asleep ________ there was a knock at the door.

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The student didn't stop talking ________ the teacher came in.

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________ they were sweeping the floor, John came back.

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My father was reading ________ I was doing my homework.

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You never have lunch at home, ________?

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Let her ______ the work．　　　

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A．doing　　　B．to do　　　C．do　　　D．did

Please ask your sister ______ me when she comes back．　　　

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A．calling　　　B．to call　　　C．calls　　　D．call

______ the way, where is Jim?　　　

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A．On　　　B．In　　　C．By　　　D．At