My study of biology has ______ much of my spare time, but it has given me a great deal of enjoyment.
| A．taken off | B．taken down | C．taken up | D．taken away |
Only when _____ be possible to sign the contract.
| A．the lawyer comes it will |
| B．does the manager come will it |
| C．has the manager come it will |
| D．the manager comes will it |
Mr. Smith has been to many famous cities in China, _______ Chengdu has impressed him most.
| A．in which | B．on which | C．of which | D．with which |
--How much pepper did you put in the soup?
--I'm sorry to say, ____. I forget.
| A．no one | B．none | C．nothing | D．no |
James has put on so much weight recently that his mother has to ______ all his trousers to his measure.
| A．bring in | B．give away | C．let out | D．make up |
Thank you for sending us ____ fresh vegetables of many kinds. You have done us ____ great service.
| A．不填；a | B．the；a | C．不填；不填 | D．the；不填 |