单项选择题
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
She is（）interested in physics. She often works at it un...
单项选择题She is（）interested in physics. She often works at it until（）into the night.
A. deep; deep B. deep; deeply C. deeply; deep D. deeply; deeply
