题目内容
4. Tom's mother kept telling him that he should work hard, didn't help.
A. he B. which C. she D. it
4. B
4. B解析：which引导定语从句，代替主 句内容，并在从句中作主语。句意:汤姆 的妈妈一直告诉他要努力学习，但这并 不管用。
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题目内容
4. Tom's mother kept telling him that he should work hard, didn't help.
A. he B. which C. she D. it
4. B解析：which引导定语从句，代替主 句内容，并在从句中作主语。句意:汤姆 的妈妈一直告诉他要努力学习，但这并 不管用。