It came as_______ surprise that Poland’s President and scores of its top officials were killed in _______ air crash in Russia.
| A．不填; the | B．a; an | C．a; 不填 | D．the; an |
The reason ______ Tom came to attend the meeting was ______ he was an expert in this field.
| A．why; that | B．why; whether | C．that; why | D．why; because |
---It_____ for a whole week. I think it’ll stop soon.
---Hard say. We’re getting into the rainy season now.
| A．has rained | B．has been raining |
| C．is raining | D．will rain |
I’m glad you’ve made great progress so far. Keep it up______ you must be successful.
| A．and | B．while | C．so | D．or |
---What do you think of the film?
---Cool! Never before _____ a better one.
| A．had I seen | B．I have seen | C．have I seen | D．I had seen |
Despite the great difficulty we had _____ out the plan, it paid off in the end.
| A．carrying | B．carried | C．to carry | D．carry |