题目内容
试题答案
If you _____ smoke, please go outside.
A. can B. should C. must D. may
If you smoke, please go outside.
If you ________ smoke, please go outside.
A. can B. must C. should D. may
If you _______ smoke, please go outside.
If you __________smoke, please go outside.
If you ______ smoke, please go outside.
A．can
B．should
C．must
D．may
A．can B．should C．must D．may