3. Sally have to cook tonight.
A.doesn't
B. don't
C. isn't
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4. You and I watch a movie later.
A.should
B. has to
C.should to
5. Should Valentine a new computer?
A.to buy
B.buy
C.buying
6. You to listen to me. It's important.
A. shouldn't
B.has
C.have
7. James shouldn't so fast.
A.to drive
B. drive
C. drives