---May I smoke here?---If you ____,choose a seat in the section.A shouldB couldC mayD must为什么选D,Why not choose How to translate it?

---May I smoke here?---If you ____,choose a seat in the section.A shouldB couldC mayD must为什么选D,Why not choose How to translate it?
---May I smoke here?---If you ____,choose a seat in the section.
A should
B could
C may
D must
为什么选D,Why not choose
How to translate it?

---May I smoke here?---If you ____,choose a seat in the section.A shouldB couldC mayD must为什么选D,Why not choose How to translate it?
这里是"如果你非得抽烟",注意,是"非得",ABCD只有MUST有这个意思,COULD是将来式的"可以"的意思,所以不选B选D