送分的来了If we all make a contribution to _____ the environment,the world will become much more beautifulA.protecting B.peotected C.protect D.protects这道题选A.我不理解,那个"to"到底是介词还是动词不定式的标志?
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送分的来了If we all make a contribution to _____ the environment,the world will become much more beautifulA.protecting B.peotected C.protect D.protects这道题选A.我不理解,那个"to"到底是介词还是动词不定式的标志?
送分的来了
If we all make a contribution to _____ the environment,the world will become much more beautiful
A.protecting B.peotected C.protect D.protects
这道题选A.我不理解,
那个"to"到底是介词还是动词不定式的标志?
送分的来了If we all make a contribution to _____ the environment,the world will become much more beautifulA.protecting B.peotected C.protect D.protects这道题选A.我不理解,那个"to"到底是介词还是动词不定式的标志?
to ,Orientational Prepositions方位介词
make a contribution to sth/doing sth.
to为介词,因为这是表示一种目的,介词后加动词的ing形式
make contribution to doing sth.
固定搭配
make a contribution to 贡献
to 是介词