--Must I clean the classroom now, Miss Wang?
--No, you needn’t . It by Bill.
| A．is cleaning | B．should be clean |
| C．was cleaned | D．has been cleaned |
. I think _______ a foreign language is not easy. You should _______ it often.
| A．to learn; to practice | B．learning; practice |
| C．learn; practicing | D．learns; to practice |
—_______ do you play computer games?
—Every night.
| A．How long | B．When |
| C．How much | D．How often |
. —Would you mind _______here?
—I’m sorry about that. I’ll go somewhere else.
| A．no smoking | B．not smoking |
| C．no smoke | D．not smoke |
The shirt looks very nice. I guess it is _______ 100 yuan.
| A．at first | B．at most |
| C．at least | D．at last |
. —I talked with a foreigner for a long time yesterday.
—Great! It’s a good _______ to practice English.
| A．habit | B．chance | C．skill | D．exercise |