When he saw a wallet on the playground , he at once .
A. picked it up B. gave it up. C. picked up it.
The young man used toto work, but he is used toto work now.
A. drive; walking B. drove; walked C. driving; walk
—Li Lei, you’d betterto bed early.
—Oh, l’ll go to bed as soon as Imy homework.
A. go; will finish B. go; finish C. to go; will finish
—How long have you been like this?
— .
A．Last month B．Two months ago C．Since last month
Mr. Smith didn’t tell us .
A．where does he live B．where he lived C．where did he live
Miss Wang told us that the moon around the earth.
A．moves B．moved C．had moved