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Most of the students failed in the final exam. It ______ easy.A、can’t beB、shoul
Most of the students failed in the final exam. It ______ easy.A、can’t beB、shoul
游客
2023-10-09
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问题
Most of the students failed in the final exam. It ______ easy.
选项
A、can’t be
B、shouldn’t be
C、mustn’t have been
D、couldn’t have been
答案
D
解析
大多数学生期末考试不及格,题目不可能容易。在表示推测时,must be仅用于肯定句,不能用于疑问句或否定句;can’t be用于否定句,表示不大可能,所以根据时态选D。
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