What do you ___________ with your eyes?[ ]
A. are
B. do
C. to
答案：B
He says "hello" to his friends from ________ countries. [ ]
A. speak English
B. say English
C. English speak
D. English-speaking
在风险发生后对项目的影响大小经常用字母来表示，其中严重影响用字母表示为( )。
A．S B．H C．L D．M
