--we must call the doctor.--yes,we must .[do]

--we must call the doctor.--yes,we must .[do] we must call the 这句的回答-We must call the doctor. Must we go to see a doctor at once when we have the flu?Yes, tim don't fell well.we must (call)a doctor We must find sb___(do) the job. we must _(派；寄)for the doctor at once How dirty the water is! Yes, we must do something to stop th We must purify the tim doesn‘t fell well,we must （）（call）a doctor. “Must we do it now?” “Yes,you ______.A.can B.must C.may we must do more英译汉