concern
| A．cartoon | B．suitcase | C．calm | D．cycle |
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 |