Question

You____me my bike yesterday afternoon; I needed it so badly

1. A.
   should have returned
2. B.
   should return
3. C.
   must return
4. D.
   must have returned

Answer 1

A
考查情态动词。根据句意可知为对过去事情的推测，故用情态动词+ have done结构，should have done本应当做某事，选A。