A、  B、  C、  A题干是以疑问词开头的特殊疑问句，因此不能用Yes／No来回答，因此首先排除(B)项。这道题问Patterson先生什么时候来，(A)项回答了具体的时间，因此是正确答案。而(C)项可以用来回答询问去He

Didn’t we see these samples last week?
(A) I’d love to sample some.
(B) Sure, I’ll bring them next week.
(C) No, these are slightly different.

When did Mr. Patterson say he was coming?
(A) Today at two.
(B) Yes, I think so.
(C) He’s flying to Heathrow.