Do remember to be ________. We must avoid any possible risks when doing this dangerous chemical experiment—burns, poisonous gases or cuts from broken tubes.
| A．cautious | B．thoughtful | C．considerate | D．curious |
Bring the flowers into a warm room __________ they'll soon open.
| A．or |
| B．and |
| C．but |
| D．for |
—What do you think of this film?
—Very bad. __________
| A．Nothing could be worse. |
| B．Nothing could be better. |
| C．I like it a little. |
| D．You just couldn't find a better one. |
—Shall I give you a ride as you live so far away?
—Thank you. __________
| A．It couldn't be better. |
| B．Of course you can. |
| C．If you like. |
| D．It's up to you. |
—Why don't we just leave it until tomorrow?
—__________ I'm dead tired today.
| A．Forget it. |
| B．I couldn't agree more. |
| C．It all depends. |
| D．Don't mention it. |
—How was your recent trip to Sichuan?
—I've never had __________ one before.
| A．a pleasant |
| B．a more pleasant |
| C．a most pleasant |
| D．the most pleasant |