If I ________ you,I would not do it.

问题描述:

If I ________ you,I would not do it.
A.am
B.was
C.have been
D.were

选D
由主句可以看出这是对现在的虚拟,所以从句的动词时态为过去时,而在对现在的虚拟语气中,如果动词是be,那么一律改为were