题目内容
【题目】Mum asked children to eat it (two) a week.
【答案】twice
【解析】twice a week是固定短语,意为“一周两次”,故填 twice。句意是:妈妈叫孩子们一周吃两次。
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题目内容
【题目】Mum asked children to eat it (two) a week.
【答案】twice
【解析】twice a week是固定短语,意为“一周两次”,故填 twice。句意是:妈妈叫孩子们一周吃两次。