You may hurt youself if you (not be ) careful用所给词的适当形式填空
You may hurt youself if you (not be ) careful用所给词的适当形式填空
(help) the poor children ,the students in our school did everything they could
(help) the poor children ,the students in our school did everything they could
英语人气：159 ℃时间：2020-06-09 13:31:44
优质解答
aren't 是不是因为careful是形容词,前面用系动词恩，系表结构be后面是形容词谢了不客气
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