According to a recent poll, 61 percent of American high school students have admitted to ____ on exams at least once
A. cheating
B. cheat
C. have cheated
D. being cheated
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A survey was carried out on the default rate of the assembly line, ____ were surprising
A. as results
B. which the results
C. of whose the results
D. the results of which
Doing your homework is sure way to improve your test scores, and this if especially true ____ it comes to classroom tests.
A. when
B. since
C. before
D. after
You ____ all those dishes, you know. I’d have done them myself when I got home
A. wouldn’t have washed
B. couldn’t have washed
C. mustn’t have washed
D. needn’t have washed
我国《公路工程技术标准》规定,公路根据使用任务、功能及相应交通量等分为_____个等级。