题目内容
【题目】—I’m very tired these days because of walking to school every day.
—________ useful exercise you are taking! It can help you keep healthy.
A.WhatB.How
C.What aD.What an
【答案】A
【解析】
试题句意:这些天因为每天都是步行去上学很累。你正在做多么有用的锻炼啊!它能帮助你保持健康。感叹句的表达方法:what a/an +单数可数名词+形容词+(主语+谓语)!What +形容词+不可数名词/可数名词复数+(主语+谓语)!How +形容词+(主语+谓语)!本句中exercise是不可数名词,故选A。
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