I am too tired. I _____ my homework all morning. A have been doing B did

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I am too tired. I _____ my homework all morning.
A have been doing B did C do D have done

答案

解析

略

举一反三

The monitor suggested that we ______ for a picnic on Sunday.

A．went

B．must go

C．could go

D．go

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Everyone here，including kids，________ their attention on the matter.

A．focus

B．focuses

C．to focus

D．focusing

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29．—May I speak to your manager at three o’clock tomorrow afternoon ?
—I’m sorry, He to Shanghai by then

A．had flown	B．could have flown
C．will have flown	D．has flown

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At 4:00 next Friday, I ________TV in my room.

A．will watch

B．will be watching

C．will have watched

D．will been watching

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-- Why bother? There is too much rubbish here. You’ll never pick it all up.
--- Maybe not. But at least this part of the park cleaner.

A．was

B．will be

C．had been

D．is

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