—When did it begin to snow?
—It started________the night.
| A．during | B．by | C．from | D．at |
more attention, the tree could have grown better.
| A．Given | B．To give | C．Giving | D．Having given |
a rely, he decided to write a sixth letter.
| A．Not receiving | B．Not to receive |
| C．Not having received | D．not received. |
is a good of exercise for both the young and the old.
| A．the walk | B．walking | C．To walk | D．walk. |
The news reporters hurried to the airport, only the film stars had left.
| A. to tell |
B. to be told |
C. telling |
D. told |
I’m sorry written you a letter at the tine.
| A. to have not |
B. to not have |
C. not to have |
D. not having |