Unless you work as hard as you can, you won’t ______ your classmates.
| A．fall behind | B．keep on with |
| C．keep up with | D．catch up |
Of the two brothers, Bill is ___ younger one, and he is ____ quiet boy, one that most adults like very much.
| A．the; a | B．a ; the | C．a; one | D．the ; the |
______ role she played in the film! No wonder she has won an Oscar.
| A．How interesting | B．How an interesting |
| C．What interesting | D．What an interesting |
----- I’m sorry . I ________ at you the other day .
----- Forget it. I was also a bit out of control of myself.
| A．shouldn’t shout | B．mustn’t shout |
| C．shouldn’t have shouted | D．mustn’t have shouted |
A survey has shown that 40% of those killed in traffic accidents _____ if they had been wearing seat belts.
| A．should have been saved | B．must have been saved |
| C．need have been saved | D．could have been saved |
— Why does the boy keep crying?
— It is ______ he has lost his favorite car model.
| A．since | B．so | C．when | D．because |