Question

The United Nations are evaluating the damage caused in Haiti earthquake, while in Chile the government itself ______ the lead role．

A．is taking

B．was taking

C．took

D．had taken

Answer 1

A

解析試題分析：句意：聯(lián)合國(guó)正在評(píng)估在海地地震中造成的損害，而在智利，政府本身正在發(fā)揮主導(dǎo)作用。題干中while (conj.)后的從句謂語(yǔ)動(dòng)詞只能是延續(xù)性動(dòng)詞,強(qiáng)調(diào)主從句的兩個(gè)動(dòng)詞同時(shí)發(fā)生，意思是當(dāng)……的時(shí)候；雖然；然而。例如，I was peeling my banana while I was walking so I didn't see the banana skin in front of me. 由此可判斷，句子空白處也應(yīng)該是現(xiàn)在進(jìn)行時(shí)，A正確。
考點(diǎn): 考查動(dòng)詞時(shí)態(tài)的用法。