He was afraid that the branch might bend over and break, and he would be sent _____ to the ground.
It is generally accepted that swimming ________ good health.
________atmospheric haze(雾霾天气) or smog will continue makes the public worried.
The plan you have given us sounds good, but I am afraid it doesn’t seem very ________as far as this job is concerned.
---Please inform Tom of the exact time of the arrival of the plane. ---________? He will come here tonight.
Any information one wants to know about the coming National Games in Shenyang, just call 024- 62347788. It ________ be simpler.