of danger in the street at night, she had to go home, with a friend her.
| A．Warned; accompanied | B．Having warned; accompanying |
| C．Warning; accompanying | D．Having been warned; accompanying |
I hope that ________ that I’ve been able to do is of some use to you.
| A．a few | B．the few | C．a little | D．the little |
We all admired her ______ the way she saved the children from the fire.
| A．to | B．for | C．in | D．at |
We should not ________ economic growth that will harm the environment.
| A．solve | B．promote | C．challenge | D．reduce |
---- Do you surf the Internet a lot？
---- Well,_______, I’m too busy with work to surf the Net.
| A．all right | B．I have no idea | C．at last | D．to tell you the truth |
Every possible means ________ to prevent the air pollution, but the sky is still not clear.
| A．is used | B．are used | C．has been used | D．have been used |