my mom not totrust those people easily, shewouldn’thavebeen cheated out of 50,000 yuan.
| A．IfIwarn | B．IfIshouldwarn |
| C．HadIwarned | D．IfIwarned |
Animals are different from plants ________ they can move when they are attacked by others.
| A．where | B．in which |
| C．for which | D．in that |
The approach _________ the problem is contrary ________ our expectations.
| A．of; to | B．to; to | C．to; on | D．for; on |
She is always thinking more of herself, seldom, ________, offering to help others.
| A．if never | B．if possible |
| C．if ever | D．if any |
---How often do you drop your e-pal a line?
---_______, but usually once a week.
| A．It depends | B．As usual |
| C．Generally speaking | D．Have no idea |
Our skin, if ______ to sunlight for a long time, can become darker.
| A．exposes | B．exposing |
| C．being exposed | D．exposed |