According to what he complained about, something must have gone wrong with the computer, ______?1 According to what he complained about, something must have gone wrong with the computer, ______? A. mustn't it B. didn’t he C. hasn’t he
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![According to what he complained about, something must have gone wrong with the computer, ______?1 According to what he complained about, something must have gone wrong with the computer, ______? A. mustn't it B. didn’t he C. hasn’t he](/uploads/image/z/9088080-24-0.jpg?t=According+to+what+he+complained+about%2C+something+must+have+gone+wrong+with+the+computer%2C+______%3F1++According+to+what+he+complained+about%2C+something+must+have+gone+wrong+with+the+computer%2C+______%3F+A.+mustn%27t+it+++++++B.+didn%E2%80%99t+he++++++C.+hasn%E2%80%99t+he)
According to what he complained about, something must have gone wrong with the computer, ______?1 According to what he complained about, something must have gone wrong with the computer, ______? A. mustn't it B. didn’t he C. hasn’t he
According to what he complained about, something must have gone wrong with the computer, ______?
1 According to what he complained about, something must have gone wrong with the computer,
______?
A. mustn't it B. didn’t he C. hasn’t he D. didn’t it
答案D,说下理由
According to what he complained about, something must have gone wrong with the computer, ______?1 According to what he complained about, something must have gone wrong with the computer, ______? A. mustn't it B. didn’t he C. hasn’t he
must 用来表示猜测 时,其反义疑问句的助动词须与原先的助动词相同
此句中,因为是过去时,have 应该用did
再如
he must be working right now, isn't he?