-It’s necessary our environment. -I agree with you. A．protectB．protectingC．to protectD．protects 题目和参考答案——青夏教育精英家教网—

题目内容

—It’s necessary ____ our environment(环境). —I agree with you.

A．protect（保护）

B．protecting

C．to protect

D．protects

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