Question

They ________ that the books be returned to the school library at once．

1. A.
   demanded
2. B.
   hoped
3. C.
   wished
4. D.
   permitted

Answer 1

A
后面的宾语从句的谓语部分省略了should：the books should be returned to the school library at once．这是虚拟语气的一种表达；所以主句的谓语动词应当是与“建议；要求”相关的动词。