Every necessary means____ to protect milu deer which____ very valuable to us. As a result, the number of milu deer is increasing.
| A．are used; is | B．is being used; is |
| C．have been used; are | D．has been used; are |
A left –luggage office is a place where bags _____ be left for a short time, especially at a railway station.
| A．should | B．can | C．must | D．will |
— The room is so dirty. _____ we clean it ?
— Of course.
| A．Will | B．Shall | C．Would | D．Do |
Naturally, after I told her what to do, my daughter _____ go and do the opposite !
| A．may | B．can | C．must | D．should |
Oh, I’m not feeling well in the stomach. I ______ so much fried chicken just now.
| A．shouldn’t eat | B．mustn’t have eaten | C．shouldn’t have eaten | D．mustn’t eat |
— I heard they went skating in the mountains last winter.
— It _____ true because there was little snow there.
| A．may not be | B．won’t be | C．couldn’t | D．mustn’t be |