If he _________ ill yesterday, he would have taken part ...

★ If Clause

If he _________ ill yesterday, he would have taken part in the football match.

A. hasn’t been

B. wouldn’t be

C. weren’t

D. hadn’t been

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George would have met Mary _____ to his brother’s graduation party.

A. if he didn’t go

B. if he has not gone

C. if he hadn’t gone

D. if he shouldn’t have gone