They _____ on the program for almost one week before I joined them, and now we _____ it as no good results have come out.
| A．had been working; are still working |
| B．had worked; were still working |
| C．have been working; have worked |
| D．have worked; are still working |
It’s a fine day. Let’s go fishing, ________?
| A．won’t you | B．will you |
| C．don’t we | D．shall we |
No one knows what effects the GM material might have ________the food chain.
| A．on | B．for | C．to | D．with |
If you get the job, ________yourself to it and you will be rewarded.
| A．devoting | B．devoted |
| C．to devote | D．devote |
---It has been decades since we last met.
---But I still remember the graduation party, believe it or not, ________we toasted for our separation and reunion.
| A．that | B．which | C．where | D．what |
According to statistics, a man is _________to die of skin cancer as a woman.
| A．more than twice as likely |
| B．twice more than as likely |
| C．as likely more than twice |
| D．twice more than likely as |