I'm glad to find that many trees___in our city last year.

问题描述:

I'm glad to find that many trees___in our city last year.
A.plant B.planted C.were plantedD.are planted
为什么不选D 不是I am glad 现在时吗?

C
宾语从句要根据时间状语的last year用一般过去时、被动语态不是要和主句时态保持一致吗当主句是一般现在时的时候不必和主句时态保持一致,若是过去时,要考虑时态一致。