对不起,你的问题太难了,我回答不了.
I′m sorry,your question is difficult for me answer it.
Mr. Smith has been in China for six years.(对划线部分提问)
has Mr.Smith been in China?
作为青少年,我们应该关爱照顾老人.
As teenagers, we should the old.
健康取决于食物、锻炼和足够的睡眠.
Health food,exercise and enough sleep.
Boys and girls, help y to some fish.
Mr. Wang asked me to i myself when I first came to the class.