Sam _____ some knowledge of the computer just by watching others working on it.
A．brought up B．looked up C．picked up D．set up
That’s the new machine ______ parts are too small to be seen.
A．that B．which C．whose D．What
—Do you think you could do without help?
—______. This is not the first time for me.
A．Take care B．Hurry up C．Not exactly D．Don’t worry
Whom would you rather ________ with you, Jim or Jack?
A．have go B．have to go C．have gone D．has to go
On a rainy day I was riding my bike to pick up my son ___ a terrible accident happened ahead.
A．who B．which C．while D．when
— Do you know where Miss Gao is? I couldn’t find her anywhere.
— She ________ have gone far, for her coat is still here.
A．shouldn’t B．mustn’t C．can’t D．wouldn’t
