If the balance of nature is ____ , a series of problems will arise .
| A．disturbed | B．troubled | C．interrupted | D．confused |
The policeman warned the driver _______ so carelessly.
| A．never to drive | B．to never drive |
| C．to not drive | D．doesn’t drive |
When we visited Hainan again ten years later, we found it changed so much that we could hardly _______ it.
| A．remember | B．think about | C．believe | D．recognize |
—Your food is very delicious!
—_______.
| A．Don’t mention it | B．I’m sorry to hear that |
| C．You’re kidding | D．I’m glad to hear that |
Tim, ______ you ______ your homework yet?
| A．were, finish | B．have, finished | C．are, finished | D．do, finish |
Judging by her _______, Jane must be a southerner.
| A．pronunciation | B．accent | C．voice | D．sound |