— Could you meet me at the airport?
— I'd like to，but I'm afraid I ______ a very important meeting when you return.
| A．am attending | B．was attending |
| C．will be attending | D．will have attended |
—Have you heard that Tom,along with his parents,______to Japan?
—Really?No wonder I haven’t seen him these days.
| A．has been | B．has gone | C．have been | D．have gone |
As soon as he comes back, I’ll tell him when ______ and see him.
| A．you will come | B．will you come |
| C．you come | D．do you come |
Great changes ______ in my hometown in the past twenty years.
| A．took place | B．have taken place | C．were taken place | D．have been taken place |
It _____ long before we _____ the result of the experiment.
| A．will not be; will know | B．is; will know |
| C．will not be; know | D．is; know |
Mrs. Brown was much disappointed to see the washing machine she had had ____ went wrong again.
| A．it to repair | B．it repaired |
| C．repaired | D．to be repaired |