Everyone can help to save paper.If we all ___ ,we can help protect trees .A think carefully B think over it C think it about D think careful 最好能指点一下不能选其他项的理由
问题描述：
Everyone can help to save paper.If we all ___ ,we can help protect trees .
A think carefully B think over it
C think it about D think careful
最好能指点一下不能选其他项的理由
答
首先,think 是及物动词,因此排除A,D.其次,因为代词一般放在介词前面,因此排除B.
正确答案C
答
C
答
D
答
B
答
这道题选A
think既可以当及物动词也可以当不及物动词
看了这个你就知道 C为什么不行了 因为think about是由动词和介词组成
宾语只能放在其后
因为think carefully是考虑再三的意思所以选A