—Why didn’t you come to the meeting yesterday?—I but my old father came unexpectedly.A. ha

问题补充：

—Why didn’t you come to the meeting yesterday?

—I,but my old father came unexpectedly.

A. had to

B. was going to

C. want to

D. ought to

答案：

A. had to

(答案→)B. was going to

C. want to

D. ought to

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