________ stopping polluting the earth ________ hope to live in a better environment.
| A．Only to; we can | B．Only to; can we |
| C．Only by; can we | D．Only by; we can |
After the class was over, the student apologized ______ the teacher _____ his coming late.
| A．/; because | B．/; for | C．to; because | D．to; for |
Mr. White ________ at 8:30 for the meeting, but he didn’t turn up.
| A．should have arrived | B．should arrive |
| C．should have had arrived | D．should be arriving |
On Halloween, children in America like to _____ as ghosts to frighten people.
| A．take up | B．make up | C．dress up | D．turn up |
The little boy has not the ______ to lift the heavy box.
| A．energy | B．force | C．power | D．strength |
I am looking forward to ______ your answer as soon as possible.
| A．receiving | B．being received | C．receive | D．be received |