试题题干
Rewrite the following sentences as required.
Using a non-finite verb form：
Don't take his words seriously if he professes that he knows everything about your history.
参考答案
试题解析
本题考查非限定动词中的不定式的使用。
非限定动词形式，包括动词不定式，动词-ing和动词-ed形式。题干中的profess：声称，承认。常用的不定式搭配是profess to do：声称要做。所以把profess引导的that从句改为professes to know。
句意：如果他声称对你的过去了如指掌，千万不要把他的话当真。