【題目】It was 80 years before Christopher Columbus crossed the Atlantic______Zheng sailed to East Africa

A.when B.that C.after D.since

【答案】

【解析】試題分析：考查強(qiáng)調(diào)句。句子雖然比較長(zhǎng)，但是其主干為強(qiáng)調(diào)句型，是對(duì)“80 years before Christopher Columbus crossed the Atlantic”進(jìn)行了強(qiáng)調(diào)，由此可知，空白處應(yīng)該填寫(xiě)“that”。故選B。

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