How I wish _____ speak French!A. couldB. was able to
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Driving on icy roads_____ be dangerous.A. canB. may
Mary _____ be in Paris. I saw her an hour ago.A. may notB. cannot
I'm afraid you _____ do this; it is a rule of the college.A. mustB. have to
You _____ do what I tell you.A. mustB. have to