Ten years ago, the population of our village was ______ that of theirs.
| A．as twice large as | B．twice as large as |
| C．twice as much as | D．as twice much as |
.
--- Are you going to stay overnight?
--- Not__________it’s really necessary.
| A．if | B．unless | C．until | D．since |
.
A volunteer is a person willing to help others, one who offers to do something without__________.
| A．paying | B．paid | C．being paid | D．to pay |
.
The program “Hear with Yushu, Love Has No borders” told touching stories about rescue volunteers, whose brave deeds__________never be forgotten.
| A．can | B．may | C．need | D．must |
.
We didn’t tell Susan about our plan__________upsetting her.
| A．for fear of | B．regardless of | C．in face of | D．instead of |
.
Though the teacher had tried to make the problem easy__________, still Lily and her partner were at a loss.
| A．understood | B．understanding | C．to understand | D．to be understood |