—is very interesting to swim in the river in summer,but it’s dangerous.A. ThisB. ThatC. It

发布时间：2020-08-22 16:37:57

—    is very interesting to swim in the river in summer,but it’s dangerous.
A. This
B. That
C. It
D. He

网友回答

A. This
B. That
(答案→)C. It
D. He
解析：句式：It is adj to do sth做某事怎么样。本结构中it做形式主语，指代下文不定式内容，其它选项无此用法。故选C。
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