题目

Similarly，only by means of examinations________the level of their students. A．teachers can understand B．teachers understand C．can teachers understand D．teachers do understand   答案： C 此题考查倒装句。句意是：同样地，唯有通过考试老师才能了解他们学生的水平。Only＋状语在句首，句子的谓语要倒装。

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