Theability _________ an idea is as important as the idea itself.
| A．expressing | B．expressed | C．to express | D．to be expressed |
12. To my surprise, some of my students_____ stay up to study for the coming examination
| A．may | B．must | C．can | D．Should |
11. It is natural that____student doesn't know some answers to____questions raised by their teachers.
| A．a;a | B．a;the | C．the;a | D．the; the |
10. - Can you show me your headmaster's office?
-_____But I don't know if he is in at the moment.
A. Go ahead B. You're welcome c. Of course not D. Sure
9. After playing basketball for two hours. he returned home.
| A． tiredly and thirsty | B． tired and thirstily |
| C． tiredly and thirstily | D． tired and thirsty |
8. There's_____cooking oil lefi in the house. Would you go to the comer store and get____?
| A． little; any | B．little; some | C．a little; some | D．a little; any |