Question

I told Sally how to get there, but perhaps I ________ for her.

A．had to write it out

B．must have written it out

C．should have written it out

D．need to have written it out

Answer 1

C

試題分析：考查情態(tài)動(dòng)詞+完成式的用法：句意：我告訴Sally怎么到這兒，但是可能我應(yīng)該把它寫(xiě)下來(lái)。本應(yīng)該做而沒(méi)做should have done，must have done過(guò)去一定做了，need 后面直接接have done，沒(méi)有to，選C。
點(diǎn)評(píng)：情態(tài)動(dòng)詞無(wú)論是表達(dá)“推測(cè)和可能性”，還是表達(dá)“虛擬”這一概念，只要是對(duì)過(guò)去已經(jīng)發(fā)生的事情進(jìn)行描述，一律用“情態(tài)動(dòng)詞+have done”這一結(jié)構(gòu)；對(duì)現(xiàn)在或?qū)��?lái)的事情進(jìn)行描述，用“情態(tài)動(dòng)詞+動(dòng)詞或系動(dòng)詞原形”。