I’d appreciate ______ if you would help me finish the task.
| A．that | B．this |
| C．it | D．you |
All that can be done _______.
| A．has been done | B．has done | C．have done | D．were done |
The man couldn’t _____the fact that the lost watch was found in his house.
| A．explain for | B．account for | C．amount to | D．refer to |
Towards _______evening, ________ cold rain began to fall down.
| A．an; a | B．/ ; a | C．the; the | D．the; a |
Whether life will continue on the earth for millions of years ______will depend on ____this problem can be solved.
| A．to come; if | B．coming; if | C．to come; whether | D．coming; whether |
We expressed the hope________ they would come and visit our hometown again.
| A．which | B．that | C．why | D．how |