This is the material ________ in the laboratory tomorrow morning.
| A．tested | B．to be tested | C．being tested | D．will be tested |
The elderly people still prefer to live in the countryside, ________ city life is considered as convenient and fast.
| A．while | B．unless |
| C．though | D．as |
The woman rushed out ________ she felt the house shaking.
| A．until | B．immediately |
| C．unless | D．before |
The old lady could give the child sympathy, ________ any practical help would be beyond her.
| A．or | B．so |
| C．and | D．but |
________ the news, so far, has been good, there may be days ahead when it is bad.
| A．While | B．When |
| C．Because | D．If |
—Well, Jane has many advantages, too.
—Oh, yes. ________ others are weak, she is strong.
| A．If | B．Where |
| C．Though | D．When |