We can’t do well in examination _________ we study hard in school time.
| A．if | B．and | C．since | D．unless |
The room is big enough. It ______hold 100 people.
A. can B. should C. need
Mr. Wang has taught in our school _______ he came to Hainan.
A. when B. for C. since
It’s reported that China has the _________ population in the world.
A. largest B. smallest C. most
—How many girls are there in your school?—______________. I think.
A. Two third B. Two thirds C. Second third
—Hello! Could I speak to Mr. Liu, please?
—Sorry. He ___________ Sanya for a holiday.
A. has gone to B. has been to C. went