A . combine
B . complain
C . comprise
D . complex
A . procession
B . professor
C . mission
D . pressure
问题：
[单选,材料题] The reason why all the solar energy falling on the earth can’t be utilized is that ______．
The reason why all the solar energy falling on the earth can’t be utilized is that ______．
问题：
[单选] If you will do that, please take me into ________．
If you will do that, please take me into ________．
问题：
[单选] I _______ here two years ago．
I _______ here two years ago．
