一I still cannot figure out why he missed his flight．一He an accident on the way to the airport．

一I still cannot figure out why he missed his flight．一He       an accident on the way to the airport．

#88060

could have had

should have had

would haye had

must have had

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 —Where are the children？The dinner's going to be completely ruined.—I wish they ________ always late.(2011·北京)

#86548

weren't

hadn't been

wouldn't be

wouldn't have been

If the island               a tourist attraction, last week’s earthquake would have caused far more deaths.

#87041

is to remain

has remained

remained

would remain

I should not have laughed if I _________ you were serious.

#86761

thought

would think

had thought

have thought

I _________  to the party with you tomorrow if I didn’t have to attend the meeting.

#86503

went

had gone

would go

would have gone

She had to work deep into the night, ______she couldn't have spread the messages to all the relevant people successfully.

#86759

while

but

otherwise

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