问题补充：
--- Will they come to the party?
--- . They’ll have an English test.
A. Yes, they will.
B. No, they won’t
C. Yes, they won’t
D. No, they will
答案：
A. Yes, they will.
(答案→)B. No, they won’t
C. Yes, they won’t
D. No, they will
解析：will they··？的肯定答语是选项A，否定答语是选项B。由答语后半句知选B
