There are so many viruses on the Internet. If ______ accidentally, the viruses may make your computer break down.
| A．downloading | B．to be downloaded |
| C．downloaded | D．being downloaded |
—Use my umbrella to ______ yourself from the rain, will you?
—That’s very kind of you.
| A．prevent | B．keep | C．rescue | D．protect |
John and I get on well with each other because we share a lot in ______.
| A．each other | B．usual | C．ordinary | D．common |
You don’t want ______ and neither do others.
| A．to make fun of | B．making fun of | C．to be made fun of | D．being made fun of |
This is such a difficult question ______ none of us can answer.
| A．that | B．which | C．as | D．/ |
Everyone in the class is expected to ______ these discussions.
| A．participate | B．participate in | C．take part | D．join |