单项选择题
The way （）you are doing it is completely crazy.
A.in whichB.by whichC.on whichD.at which
单项选择题 （）production up by 60％，the company has had another excellent year.
问答题 翻译：If these problems are not spotted early in their training，they can be a real danger to themselves and to their instructors.
填空题 用括号内所给词的适当形式填空：How many different（）of"can"are given in the dictionary？（mean）
