The Internet ____is useful.The problem is,you shouldn't spend muc_英语解答

The Internet ____is useful.The problem is,you shouldn't spend much time on it.A .it B.itself 原因!

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解答

B.itself 因为The Internet ____is useful这个句子本身就是一个完整的句子,有主谓宾这样就可以去掉A了嘛呵呵