________ made the school proud was ________ more than 90% of the students had been admitted to key universities.
| A．What；because | B．What；that |
| C．That；what | D．That；because |
14. The teacher insisted _______ until we finished the work.
| A．we not rest | B．on our resting | C．we rested | D．we would not rest |
13. — How do you keep fit?
— By having a healthy diet and _________ regularly.
| A．turning out | B．working out | C．giving out | D．going out |
12. Having finished their morning work, the clerks stood up behind their desks, ________ themselves.
| A．expanding | B．extending | C．expressing | D．Stretching |
11. ________ no need for us to discuss the problem again. It has already been settled.
| A．It has | B．There is | C．It is | D．There has |
10. — How old are you, madam?
— If you _______ know, I’m twice my son’s age.
| A．can | B．must | C．may | D．Should |