题目内容
【题目】Before our study we did not have data that could tell us __ those changes were small or large .
A. that B. how C. when D. whether
【答案】D
【解析】句意:在我们研究之前,我们没有数据可以告诉我们这些改变的大小。分析句子结构可知“________ those changes were small or large”为宾语从句,并且该从句成分完整,排除在句中作状语的B、C;that引导名词性从句时,没有实际含义,不合题意。whether意为“是否”,符合题目要求。所以选D。
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