—So hard _____ in the past few months that he has made great progress in English.
—I can see that; only a few mistakes _____ in the exam.
| A．has he worked; did he make | B．he has worked; did he make |
| C．he has worked; he made | D．has he worked; he made |
it rain tomorrow, we will not go outing.
| A．Were to | B．Were | C．Should | D．Would |
The theory he stuckto be right.
| A．to proving | B．to proved | C．proves | D．proving |
. The drunk driver isfor the traffic jam yesterday.
| A．to blame; occurred | B．to blame; occurring |
| C．to be blamed; occurred | D．to be blamed; occurring |
The professor spoke so fast that I foundhim.
| A．it hard following | B．it being hard to follow |
| C．hard to follow | D．it hard to follow |
A plan has been put forwardmore graduates should go to work in the countryside this year.
| A．when | B．that | C．whether | D．how |