My English-Chinese dictionary has disappeared. Who ________ have taken it?

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--John isn't here now?

-- ________ left by the back door?

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--When can I come for the photos? I need them tomorrow afternoon.

--They ________ be ready by 12:00.

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Professor Li ________ be in Beijing because I saw him in town only a few minutes ago.

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--Are you coming to Jeff's party?

--I'm not sure. I ________ go to the concert instead.

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--I didn't attend the meeting because my car was broken.

--You ________ mine. I wasn't using it.

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A．could borrow

B．could have borrowed

C．may borrow

D．may have borrowed

--We were not sure which way to go. In the end we turned right.

--You ________ the wrong way. You ________ left.

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A．had gone; must have turned

B．went; must turn

C．have gone; would have turned

D．went; should have turned

--I think you might have got drunk at the party.

--Well. I ________.

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At the moment she ________ the long letter to the visiting professor at the office, I suppose.

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A．may type

B．may be typing

C．can have typed

D．must be typing

I was going to see him anyway ________ sleeplessness.

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