____hard,he would have passed the exam
A. If he were to work
B. Had heworked
C. Should he work
D. Were he towork
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____today,he would get there by Friday
A. Were he to leave
B. If he had left
C. Did he to leave
D. Had he left
Idid not see your sister at the meeting. If she ____, she would have met mybrother
A. has come
B. did come
C. come
D. had come
He____busy yesterday, or he ___you with your experiment.
A. was, had helped
B. was, would havehelped
C. had been, would havehelped
D. were, would have helped
If it ____for the snow, we____ the mountainyesterday
A. were not, could have climb
B. were not,could climb
C. had not been, could haveclimbed
D. hadn’t been, could climb
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