问题补充：
—Thank you for coming to help us.—
A. Good luck with you.
B. You’re welcome.
C. I think I can do it well.
D. That’s we should do.
答案：
A. Good luck with you.
(答案→)B. You’re welcome.
C. I think I can do it well.
D. That’s we should do.
解析：情景交际。Good luck with you.祝你好运；You’re welcome. 欢迎，不客气；I think I can do it well.我能做的很好； That’s we should do. 那是我们该做的。句意：谢谢你来帮助我们。可知选B，最符合语境。
