Could you tell me _____ the bike without any help this morning?
| A．how does he mend | B．how he mended |
| C．how he mends | D．how did he mend |
The doctor says that the problem with her husband’s eyes ___by many reasons.
| A．cause | B．causes | C．is caused | D．are caused |
—Do you often help your brother with his English?
—No. He learns English by ________.
| A．us | B．him | C．ourselves | D．himself |
—Don’t _________ time talking to him. He won’t change his decision.
—I agree with you.
| A．waste | B．cause | C．forget | D．miss |
The light in the room was _____, but nobody was in.
| A．off | B．down | C．on | D．up |
--Could you please _____ in the room?
--Oh, I’m sorry.
| A．not smoking | B．not smoke |
| C．not to smoke | D．don’t smoke |