Not until I went to America _________ what kind of country it was.
| A．did I know | B．I did know |
| C．I didn't know | D．I could know |
—What do you think of this performance?
—______，I don’t like it very much.
| A．Honest | B．Being honest |
| C．Be honest | D．To be honest |
There will be a large number of people attending the lecture______today’s paper.
| A．basing on | B．according to |
| C．accounting for | D．finding out |
I want to buy a pair of new trousers to ___ my sweater.
| A．go with | B．go off | C．go on with | D．go in for |
There goes the bell for the class.Let’s stop___.
| A．to talk | B．to be talking | C．talked | D．talking |
--Must we hand in our homework now?---No, you ___. You ___ hand them in before Friday.
| A．mustn’t , can | B．needn’t, can | C．can't , can | D．mustn’t, must |