单项选择题
A. It down fell B. It fell down C. Down fell it D. Fell it down
That teacher is very good（）children. A. over B. at C. o...
单项选择题That teacher is very good（）children.
A. over B. at C. on D. with
Perhaps it will be a long while（）Donald comes back from...
单项选择题Perhaps it will be a long while（）Donald comes back from New York. Don't wait for him.
A. when B. that C. since D.before
It is reported that the United States uses（）energy as t...
单项选择题It is reported that the United States uses（）energy as the whole of Europe.
A. as twice B. twice much C. twice much as D. twice as much
