-- ______ drive so fast! It’s dangerous.
-- OK, I won’t.
| A．Not | B．No |
| C．Don’t | D．Please not |
—Why are you standing here, Mrs. White ?
—I’m waiting for my son, he ________back form school.
A. won’t B. hasn’t come C. doesn’t
—I think everyone must do his best to _______pollution.
—If so, there will be a good future for people of tomorrow.
A. keep B. stop C. stand
Could you tell me ______________ now?
| A．When will he come back | B．if he lived here |
| C．Which color does he prefer | D．Where he works |
China has became the third nation to send a person into space______________.
| A．successfully | B．probably | C．luckily | D．rapidly |
The air pollution is very serious,we should take___________to stop it.
| A．some advice | B．some measures | C．some relations | D．some effect |