_____ writer, she is excellent, _____ teacher she is not very good.
| A．As; but as | B．As; and as | C．As a ; but as a | D．As a; and as a |
一I’d like to take a long holiday.
一. We are too busy!
| A．Don’t worry. | B．Forget it. | C．It’s all right. | D．I can’t follow you. |
—Peter, let’s check what we still have left.
—Well, _____ is no use evaluating the total loss before the typhoon leaves.
| A．one | B．that | C．it | D．this |
In the factory, the helmets the workers wore varied _____ color according to their different posts.
| A．from | B．in | C．with | D．alongside |
The medicine bought at a high price turned out to have no _____.
| A．influence | B．result | C．effect | D．risk |
Please tell me how global warming _____. I am still in the dark.
| A．came by | B．came out | C．came to | D．came about |