A terrible accident____,however,occur the other day and weA terrible accident _______,however,occur the other day and we witnessed it _______ accident.A.does;byB.did;byC.has to;onD.had to;on我知道答案选B,我想问的是前面一

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A terrible accident____,however,occur the other day and weA terrible accident _______,however,occur the other day and we witnessed it _______ accident.A.does;byB.did;byC.has to;onD.had to;on我知道答案选B,我想问的是前面一

A terrible accident____,however,occur the other day and weA terrible accident _______,however,occur the other day and we witnessed it _______ accident.A.does;byB.did;byC.has to;onD.had to;on我知道答案选B,我想问的是前面一
A terrible accident____,however,occur the other day and we
A terrible accident _______,however,occur the other day and we witnessed it _______ accident.
A.does;by
B.did;by
C.has to;on
D.had to;on
我知道答案选B,我想问的是前面一个空为什么不能用had to?(我单独问前面一个空,和后面的by accident 无关)

A terrible accident____,however,occur the other day and weA terrible accident _______,however,occur the other day and we witnessed it _______ accident.A.does;byB.did;byC.has to;onD.had to;on我知道答案选B,我想问的是前面一
B是对的.had to表示不得不,难道你认为这事故是必然发生的吗?

had to的意思是“不得不”,不可以说事故“不得不”发生。

B
have to 不得不 在句子中翻译不同
did occur 强调谓语