题目内容
动词填空
用括号内所给动词的适当形式填空。
Sam, it's the third time that you ________(forget) to bring your Maths book.
答案:have forgotten
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题目内容
动词填空
用括号内所给动词的适当形式填空。
Sam, it's the third time that you ________(forget) to bring your Maths book.