题目内容
Considering that Tom always did well in all his subjects, he ________ in the final exam.
- A.mustn’t fail
- B.couldn’t have failed
- C.ought not to fail
- D.mustn’t have failed
B
他不可能考试不及格。对过去事实推测。
他不可能考试不及格。对过去事实推测。
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