You            stand in line while waiting for the bus.

A. mustn’t          B. can’t       C. are supposed to      D. don’t

You            stand in line while waiting for the bus.

1. A.
   mustn’t
2. B.
   can’t
3. C.
   are supposed to
4. D.
   don’t

________ you ________ for the bus at nine yesterday?

1. A.
   Did; wait
2. B.
   Are; waiting
3. C.
   Do; wait
4. D.
   Were; waiting