(2005·福建)

--- Catherine, I have cleaned the room for you.

--- Thanks. You ________ it. I could manage it myself.

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(2007·福建)

My MP4 player isn't in my bag. Where ________ I have put it?

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(2006·全国Ⅰ)

There is no light on---they ________ be at home.

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(2007·宁夏)

--- How's your tour around the North Lake? Is it beautiful?

--- It ________ be, but it is now heavily polluted.

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(2006·全国Ⅱ)

We hope that as many people as possible ________ join us for the picnic tomorrow.

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(2006·上海)

One advantage of playing the guitar is ________ it can give you a great deal of pleasure.

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It's difficult to tell them ________. Can you tell me how you tell one ________ the other?

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(2006·全国Ⅰ)

Eliza remembers everything exactly as if it ________ yesterday.

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Shrah, hurry up. I'm afraid you won't have time to ________ before the party.

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(2006·湖北)

I won't tell the student the answer to the math problem until he ________ on it for more than an hour.

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