In any eme rgency, you should always remain _____.
| A．calm | B．silent | C．quiet | D．still |
Unluckily, my sister had her cellphone ______ in Guangzhou before she could find a job.
| A．to be stolen | B．stolen | C．being stolen | D．steal |
No one knows ______effects the GM material might have on the food chain.
| A．what | B．which | C．whose | D．how |
With drink and food ____, the prisoner had to walk out of the cave where he was hiding.
| A．running out | B．run out | C．use up | D．using up |
Not ______that is best for nature is good for people.
A anything B nothing C something D everything
The bell __ the end of the period rang, __our heated discussion.
| A．indicating, interrupting | B．indicated, interrupting |
| C．indicating, interrupted | D．indicated, interrupted |