《公路工程国内招标文件范本》规定联合体主办人所承担的工程量必须超过总工程量的( )。
A. 30%
B. 20%
C. 50%
D. 70%
It is (driving) (on the left) (what) causes visitors to Britain (the most) trouble.
A. driving
B. on the left
C. what
D. the most
A good artist (like) a good engineer (learns) as (many) from his mistakes as from (success).
A. like
B. learns
C. many
D. success
(That's troubling) me (is) that I don't have (much experience) (in) business.
A. That's troubling
B. is
C. much experience
D. in