(单选题)

This new type of machine is said to be expensive but effective, but ______.

A.hardly after have I used it

B.hardly have I used before it

C.hardly I have used it before

D.hardly have I used it before

参考答案：D

参考解析：

考查否定词或否定结构位于句首的倒装。句意：据说这种新型机器很贵但很有效，但我以前几乎没有用过。Hardly作为否定词放在句首，句子要用部分倒装的形式，将助动词、情态动词或be动词提前，故排除A、C两项。before意为“以前”，放在句尾做时间状语。故选D。

知识点：