1.People think ( )more and more( )to protect the environment.

问题描述:

1.People think ( )more and more( )to protect the environment.
A.that;impossible B.it;important C.this;necessary D./;interesting 选什么,理由充分

BI think it important to keep healthy 与I think it is important to keep healthy前一句没有从句,后一句有从句.前一句中it是形式宾语,代指to keep healthy,important是宾补.后一句中,it is...healthy是think的宾...