Question

英语语法选择题（请解释原因，谢谢）

The general manager demanded that the job___ completed before summer holidays.

A. would be B. must be C. be D.had to be

Answer 1

答案是C
demand that sb should do should可以省略
同类词还有 suggest/ advice/ command/ recommend/ insist/ propose/ require等
此外，这类词在以下情况也要虚拟：
e.g He made a suggestion that sb should do
The suggestion is that sb should do
It is suggested that sb should do

Answer 2

B demand是要求的意思，所以用must be 必须

Answer 3

C. 虚拟语气。
demand 表示要求之类的词，从句中（should）do
C选项省略了should。
（虚拟语气有的好讲了....）

Answer 4

C
demand 后加should do 其中should可以省略
同类词还有 suggest advice command insist require等等
属于虚拟语气的一种