Food safety is important. Rules to stop people from food pollution.
“I am a singer” is one of _______ TV shows at present.
—Have you heard of the songs sung by the first lady---Peng Liyuan?—Of course! ___________ beautiful voice she has!—I agree.
—I knocked into a tree when I went to the bus stop for my friend.—I suppose you _____too fast.
If all the plants on the earth die, _______ people _________animals will be able to live.
—__________ do you go to Dalian on business?—Never.A. How long B. How often C What time D. When