请讲下原因
1 . The grey building is where the workers live, and the white one is where the spare parts _____.
A. are producing
B. are produced
C. produced
D. being produced
2 . All the students in this class passed the English exam ________ the exception of Li Ming.
A. on
B. in
C. for
D. with
3 . If I correct someone, I will do it with as much good humor and self-restraint as if I were the one ____________.
A. to correct
B. correcting
C. having corrected
D. being corrected
4 . Features such as height, weight, and skin color _______ from individual to individual and from face to face.
A. change
B. vary
C. alter
D. convert
5 . A completely new situation will _____ when the examination system comes into existence.
A. arise
B. rise
C. raise
D. arouse

1.D 灰色的建筑物是工人住的地方，白色的建筑物是被用来生产零件的地方.

2.C 　 except for
3.D　　as if I were the one being corrected :好象我是那个被改正的人一样．
4.B　 vary from to 　
5.C raise，arouse是及物动词.raise:增加．arouse:激起．