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問(wèn),. Who will take over the job has not been decided yet. D選項(xiàng)是anyone,錯(cuò)誤的原因也是缺少關(guān)系代詞who. 比較those who和anyone who,前者是那些的人,后者表示任何的人。區(qū)別就是在于those who是一個(gè)復(fù)數(shù)的概念,那些人,后面的謂語(yǔ)動(dòng)詞要用復(fù)數(shù)。而anyone who是表示任何一個(gè)人,后面要用單數(shù)的謂語(yǔ)動(dòng)詞?! ?. 虛擬語(yǔ)氣和情態(tài)動(dòng)詞 David, we went to Lake Geneva for the weekend. That _______ a very nice change. I wish I had gone there. A. must be B. must have been C. could be D. could have been B 考查情態(tài)動(dòng)詞?! ∈紫華和B里面都有must,must表推測(cè),它表示肯定,這個(gè)語(yǔ)氣是非常確定的,百分之百的。那么當(dāng)must表推測(cè)的時(shí)候呢,它還可以表示不同的時(shí)間,例如: 第一,must be表示的是現(xiàn)在的狀態(tài),He must be a teacher. 他肯定是一個(gè)老師?! 〉诙琺ust be doing表示現(xiàn)在進(jìn)行的動(dòng)作,They must be having a meeting in the ?! 〉谌?,must have done表示過(guò)去發(fā)生的事情,You must have met him 。讓我們看一下將must have been填到題干里面是否正確?句意:David,我們周末去了日內(nèi)瓦湖。哦,那肯定是一個(gè)非常好的改變,我希望我也去那里了。這里是表示一個(gè)肯定的推測(cè)。又因?yàn)槭巧蟼€(gè)周末的事情,說(shuō)明這件事情已經(jīng)發(fā)生了,我們所以用B. must have been,而不是A?! 選項(xiàng)是could輕微的懷疑或