He _____ smoke and shouted for help.
| A．smelled | B．smell | C．smelling | D．smells |
These bags aren’t ______.
| A．their | B．her | C．ours | D．us |
You need to _____.
| A．be carefully | B．be careful | C．careful | D．carefully |
------Can I play at the library?
------No, you _____ play there.You must be quiet there.
| A．weren’t | B．mustn’t | C．must | D．won’t |
------Who _____ in the competition?
------Linda did.
A.gets a prize
B.get a prize
B.win a prize
D.won a prize