题目内容：

_________you__________(take) your medicine
Yes ,I took it at seven

优质解答

Have you taken your medicine?因为回答有yes,故而需要Have you这样问.至于之后的I took it at seven与问句句法没有关联,只是回答者加上的补充信息.之所以不用Did you是因为没有人问“你曾经吃药了吗?”而总是会问“...