She recognized him because of the hat. He was standing with his back to her on a cliff ________ out across a dark sea.
| A．to look | B．looking | C．look | D．looked |
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 |
All the settlers nearby demanded that the night clubaway as soon as possible.
| A．remove | B．was removed | C．shall be removed | D．be removed |
It _____ to chat online all day long. You’d better do something else.
| A．makes no sense | B．makes no difference |
| C．makes sense | D．makes difference |
For a moment nothing happened. Then all shouting together.
| A．voices had come | B．came voices |
| C．voices would come | D．did voices come |
The police ________ Tom of stealing and the accused was afraid to meet the accuser.
| A．accused | B．charged | C．robbed | D．informed |