Experts warn that medical waste from hospitals, if properly, may contribute to spreading diseases．
| A．not handled | B．not being handled |
| C．not to be handled | D．not having been handled |
---I’m thinking of the test tomorrow. I’m afraid I can’t pass this time.
--- ________! I’m sure you’ll make it.
| A．Go ahead | B．Good luck |
| C．No problem | D．Cheer up |
All the doctors in the hospital insisted that he ____ badly wounded and that he _____ at once.
| A．should be; be operated on | B．was; must be operated on |
| C．be; was operated on | D．was; be operated on |
One should remain ______ and think of ways to escape when facing danger.
| A．quiet | B．calm |
| C．still | D．silent |
Every minute should be made use of_______ for the coming exam.
| A．preparing | B．to prepare |
| C．prepared | D．prepares |
We all like the park _______ we visited last week.
| A．where | B．which |
| C．in which | D．what |