题目内容
—Mr Smith won't arrive here until twenty minutes later.
—He ________ have let me know that he was going to be late!
A. must B. could C. would D. need
B
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题目内容
—Mr Smith won't arrive here until twenty minutes later.
—He ________ have let me know that he was going to be late!
A. must B. could C. would D. need
B