题目内容
8．--- do you usually help your mom with housework？---On weekends．（ ）
| A． | what | B． | When | C． | Why |
分析 --你通常什么时候帮你妈妈做家务？
--周末．
解答 答案：B．考查疑问词．句意"--你通常什么时候帮你妈妈做家务？--周末．"．A什么．B什么时候．C为什么．根据回答"周末"，可知，对时间提问用when．答案是B．
点评 疑问词通常用来构成疑问句，要根据回答的具体内容进行选择，注意一些固定搭配，分清疑问词的用法．
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