问题补充：
Whenever we were , he is always ready to us some help.
A. in the trouble; give
B. in trouble; offer
C. in a trouble; pay
D. in trouble,take
答案：
A. in the trouble; give
(答案→)B. in trouble; offer
C. in a trouble; pay
D. in trouble,take
解析：be in trouble陷入困境；offer sb. help为某人提供帮助。
