. Nobody noticed the thief slip into the house because the lights happened to_________.
| A．go out | B．give in | C．turn off | D．be put up |
The pen I _____ I_______ is on my desk, right under my nose.
| A．think...lost | B．thought...had lost |
| C．think...had lost | D．thought...have lost |
---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 |