It was not until an hour later that we ________ what had happened.

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He was busy________ and ________ photographs ________ them.

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________ is well known ________, paper was first made by the Chinese.

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A．It , that

B．This, that

C．As, /

D．It, when

The ________ that women ________ during the war ________ great.

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He was brought into the room, with ________.

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The______ look on his face suggested he ________ that.

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A．surprising, hadn't expected

B．surprising, would expect

C．surprised, hand't expected

D．surprised, wouldn't have expected

When we got to the village, we found that hundreds of cattle ________ grazing (吃草) in the fields.

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It's too late. If you can't finish the work today, you may ________ it tomorrow.

[　　]

A．go on to do

B．go on with doing

C．go on doing

D．go on do

There seemed to be nothing ________ to do but ________ for the doctor.

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________ many times, but she still couldn't remember it.

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