.Theythoughtaboutitforalongtim

.
They thought about it for a long time, but still couldn’t ________ a solution.

A．come over

B．got along with

C．came out

D．come up with

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--- I saw Mr Li at the meeting yesterday.
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A．needn’t

B．couldn’t

C．shouldn’t

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A．returning

B．was returned

C．it would return

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A．不填; a

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—Oh. His electronic dictionary was left in a taxi accidentally, never ________ again.

A．to find

B．finding

C．to be found

D．being found

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____ that caused him to serve dinner an hour later than usual.

A．It was we being late	B．It was our being late
C．It was we were too late	D．It was because we were late

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