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—I'vehadastomac—I'vehadastomachachefortwoweeks.—Youtothedoctorwhenitstarted.[]A.mustgoB.shouldgoC.oughttohavegoneD.mighthavegone

题目详情
— I've had a stomac
— I've had a stomachache for two weeks.
— You ____ to the doctor when it started.
[     ]
A.must go
B.should go
C.ought to have gone
D.might have gone
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答案和解析
C