We built this factory ______ top speed and minimum(最少的) cost.
| A．in | B．at | C．with | D．on |
Hurry up! The film for about ten minutes.
| A．has begun | B．began |
| C．is beginning | D．has been on |
---- I’m sorry for being late.
----___________________
| A．All right. | B．You’re right. |
| C．That’s all right. | D．That’s right. |
---- Shall we buy some beef and chicken wings for the party?
---- _________________
| A．That’s right. | B．That’s a good idea. |
| C．No, you mustn’t. | D．Good luck. |
Who__________? There's too much noise. I can not read my books any more.
| A．does sing | B．is sing |
| C．will sing | D．is singing |
We __________ take books out of the reading room. We _________ only read it here.
| A．can; must | B．must; can |
| C．mustn’t; can | D．can’t; mustn’t |