Teachers often tell their students _______ across the road when the traffic light is red.
| A．not go | B．not to go |
| C．don’t go | D．didn’t go |
I think _____ necessary to accept his advice because it’s of great ______ to me,
| A．it’s, valuable | B．that； value |
| C．this； valuable | D．it； value |
—I noticed Lily _____ a pink dress at the party.—I think she looks better_____ red.
| A．wearing ； in | B．dresses ； on |
| C．dressed； in | D．wear ； on |
— __________ terrible mess you have made! — Sorry. I will clear it up right now.
| A．What | B．How | C．How a | D．What a |
The number of the teachers in our school ____ over 400, and ____ of them are women teachers.
| A．are； two-thirds | B．is； two third |
| C．is； two thirds | D．are； two-third |
______ Saturday ________ Sunday is OK. I’ll be free then.
| A．Either； or | B．Neither； nor |
| C．Both； and | D．Not only； but also |