题目内容
17.You must look bothsides (side) of the way before crossing the roads.分析 当你多马路的时候,必须两边看.
解答 答案:sides
根据空格前的单词"both两者都",可知后面接可数名词复数,side是可数名词,要用复数,故答案为sides.
点评 熟悉可数名词的单复数用法以及复数形式变化规则,结合题意,给出答案.
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