Over 80 percent of the population of China ____ peasants.
| A．was | B．is | C．would be | D．are |
It was ten years ago ______ we last met in our hometown.
| A．that | B．until | C．before | D．when |
---- Mike, you clean the windows of the classroom this afternoon,_______?
---- But I cleaned them only yesterday.
| A．do you | B．will you | C．didn’t you | D．don’t you |
The young man who we talked a lot about yesterday is unfit for the work, _____?
| A．didn’t we | B．did we | C．is he | D．isn’t he |
---- You have never seen an American film, have you?
---- ________. How I wish I had such a chance!
| A．Yes, I have | B．Yes, I haven’t | C．No, I have | D．No, I haven’t |
________ if you want to do something, or you won’t be able to do it well.
| A．To try your best | B．Trying you best | C．Try your best | D．Unless you try your best |