单项选择题

—Do you see why he hasn’t turned up yet
—Sorry, I don’t know.()

A．what the matter is
B．how matters stood
C．what is the matter
D．how is the matter

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单项选择题
—John, may I ask you a favour()

A．I’m sorry, but why
B．Sure, what is it
C．Yes, you could.
D．I’d love to, and I’m busy.
单项选择题
—My God ! I have to walk home now, for I just missed the bus.—That’s too bad. You () it had you set out a bit earlier.

A．should have caught
B．had caught
C．would have caught
D．could catch
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