问题详情:
The language used by scientists to explain complex ideas _______ be difficult and -- well, let's face it -- sometimes boring.
B. must C. shall D. may
【回答】
A
知识点:动词时态与语态
题型:选择题
问题详情:
The language used by scientists to explain complex ideas _______ be difficult and -- well, let's face it -- sometimes boring.
B. must C. shall D. may
【回答】
A
知识点:动词时态与语态
题型:选择题