–Have you handed in your schoolwork yet?
--Yes, I have. I guess it ________ now.
| A．has graded | B．is graded | C．is being graded | D．is grading |
It was only when the war broke out ______ he began to realize everything was too late.
| A．until | B．that | C．then | D．so |
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 |