单选题
He gave orders that the prisoners free.
A. are set B. were set C. be set
A
B
C
【正确答案】
C
【答案解析】
[解析] 对于复合句来说,如果主句中含有order, suggest,advise等词时,从句常用虚拟语气(should) +be(do)的结构,其中should可以省略。
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