— How much are the two pairs of trousers?
— They are not expensive. I think one hundred dollars ______ enough.
A.isB.a(chǎn)reC.wereD.was
A

試題分析:句意:這兩條褲子多少錢?——他們不貴。我認(rèn)為100美元就足夠了。結(jié)合語境可知下文描述的是客觀性動作,故用一般現(xiàn)在時(shí)態(tài),主語one hundred dollars表示抽象含義,故謂語動詞用單數(shù)。
點(diǎn)評:英語中的時(shí)態(tài)主要是借助于時(shí)間狀語與上下文語境來進(jìn)行判斷。解答此類題型,首先要注意句子中的時(shí)間狀語,如果沒有則要通過分析上下文,結(jié)合語境來判斷句子的時(shí)態(tài)。英語中的現(xiàn)在進(jìn)行時(shí)態(tài)和現(xiàn)在完成時(shí)態(tài)中的助動詞,往往因?yàn)橹髡Z的不同,而有所不同,需要注意與主語保持一致。
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