Question

_____ the environment is important for human beings.

A．Take care of

B．Taking care of

C．Took care of

D．Take the care of

Answer 1

B

考查动名词短语作主语，分析句子成分，这里需要填动名词做主语，谓语动词用单数形式。句意：保护环境对人类是很重要的。选B。