Question

---Alice looks sad. Did you tell her about the accident?
---Yes, but I______ her just before her final examinations.

1. A.
   should have told
2. B.
   shouldn’t have told
3. C.
   needn’t have told
4. D.
   must have told

Answer 1

B
考查情态动词。shouldn’t have done 本不应该做某事，而实际上做了。句意：艾丽斯看起来很伤心，你告诉她这个事故了吗？是的，但是我本不应该在期末考试之前告诉她的。所以选B。