Question

They suggested that the library ______ open during the vacation.

1. A.
   was kept
2. B.
   would be kept
3. C.
   is kept　
4. D.
   be kept

Answer 1

D
考查虚拟语气：当宾语是suggest，advise，order，propose等词的时候，宾语从句用虚拟语气：Sb （should） do，而且the library是被一直开放，句意是：他们建议图书馆在假期一直开放。选D。