— You just think of yourself! You kept me waiting for at least three hours.
— I am sorry that you think so.
| A．should | B．would | C．might | D．could |
A computer cannot remember who_____; it simply does what _________.
| A．will use it; it is told | B．uses it; it has told |
| C．used it; it is told | D．has used it; it told |
The famous scientist was going out _____ he found himself surrounded by lots of young people.
| A．when | B．before | C．while | D．after |
– Look! What are those boys doing ______ the table?
---Well, they are playing cards.
| A．on | B．around | C．under | D．beside |
We were very busy yesterday. Otherwise we _____part in the discussion.
| A．would take | B．did take | C．had taken | D．would have taken |
Bruce _________his leg when he _____ in a football match yesterday afternoon.
| A．broke; played | B．has broken; was playing |
| C．broke; was playing | D．was breaking; played |