头条考试网作业帮,慧海网手机教育考试作业频道
All it can do is assure you that the person has looked at the first screen of the message.这句话中,is 后为啥还能用动词原形assure呢,至少也应该用to assure啊,
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时间:2024/07/12 07:46:27
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