Question

The English play __________ my students acted at the New Year’s party was a great success

1. A.
   for which
2. B.
   at which
3. C.
   in which
4. D.
   on which

Answer 1

C
根据句子意思需选择介词in，从而构成act in the play。关系代词在此是指English play，指物，因此选择in which。注意：如果定语从句谓语动词为介词动词也就是由动词+介词构成的短语，那么介词必须后置，不能与动词拆开置于关系代词前面。