So sudden ______ that the enemy had no time to escape.
| A．did the attack | B．the attack did | C．was the attack | D．the attack was |
It’s said that his smoking and bad eating habits ______his illness.
| A．led to | B．resulted from | C．ran into | D．began with |
Not only ______ a school in his hometown, but also he built a new hospital there.
| A．he has set up | B．he did set up | C．has he set up | D．did he set up |
More and more people would like to live in the countryside ______ the air is fresher and the price of housing is lower.
| A．that | B．where | C．which | D．for which |
There are many mistakes in your homework. You should ______ special attention to the correct use of tenses.
| A．focus | B．pay | C．require | D．get |
Her gentle smile at the meeting put everyone ______.
| A．at peace | B．at present | C．at best | D．at ease |