Question

----I passed the college entrance examination.
----Congratulations! You________.

A．could have studied hard	B．must have studied hard
C．should have studied hard	D．might have studied hard

Answer 1

B

解析試題分析：考查情態(tài)動(dòng)詞用法。could have done本可以做某事，實(shí)際上卻未做；must have done一定做了某事；should have done本應(yīng)該做某事，實(shí)際上卻未做；might have done也許做了某事；句意：—我通過了高考。—祝賀你。你一定學(xué)習(xí)得非常認(rèn)真吧！根據(jù)句意說明是對(duì)過去所發(fā)生的事情的有把握的肯定推測(cè)，故B正確。
考點(diǎn)：考查情態(tài)動(dòng)詞用法
點(diǎn)評(píng)：本題是高考必考考點(diǎn)，一定要牢記句型意思。must have done過去肯定做了某事。should have done 本應(yīng)該做而實(shí)際未做。can’t have done 過去不可能做了某事；shouldn’t have done 本不應(yīng)該做而實(shí)際做了。 need have done 本有必要做某事；needn’t have done 本沒有必要做某事；注意沒有 mustn’t have done的形式。