Tom,you and I could hardly work out the mathematic problem, _______?
| A．could you | B．couldn’t I | C．couldn’t we | D．could we |
.
After some time in the dark cave, our eyes slowly _____ the dark.
| A．used to | B．adapted to | C．accustomed to | D．helped to |
.
Seldom out time to watch TV on Sunday.
| A．I can squeeze | B．can I squeeze | C．squeeze I | D．I squeeze |
.
Steven Hawking’s conclusion about the Black Hole is a little , but it has been accepted by most of the world.
| A．realistic | B．abstract | C．contemporary | D．appropriate |
.
_____ matters most in learning English is enough practice.
| A．what | B．why | C．how | D．Which |
.
If I a quarrel with him yesterday, we together now.
| A．hadn’t had; would stay | B．haven’t had; would have stayed |
| C．didn’t have; would stay | D．hadn’t had; would have stayed |