—I thank you enough for what you have done for me. —You’re welcome.A. may notB. will notC

问题补充：

—I thank you enough for what you have done for me.

—You’re welcome.

A. may not

B. will not

C. must not

D. can not

答案：

A. may not

B. will not

C. must not

(答案→)D. can not

解析：句型can’t do sth enough “再…也不为过”。句意：你帮助了我再怎么感谢你也不为过。你太客气了。