_____ the teachers in their school is about 200 and one fourth of them are ____ teachers.
| A．A number of, women. | B．A number of , woman |
| C．The number of , women. | D．The number of , woman |
They managed ________ the work on time.
A. finishing B. finished C. to finish
The physics problem is very difficult. Can you ________?
A. work out itB. work it out C. work it on
This computer is the best one ____ the shop, but it is also the most expensive ___all the computers.
| A．in, of | B．in, in |
| C．of, of | D．of, in |
—Mum, could I have __________ bread? —Of course.
| A．any more | B．some more |
| C．more some | D．many more |
----What’s your best friend like?
----________________________
| A．He is fine. Thank you. | B．He is a doctor. |
| C．He likes watching TV. | D．He is helpful and generous. |