you must be fifty,___?A.mustn't you B.needn't you C.aren't you?D._英语解答

you must be fifty,___?
A.mustn't you B.needn't you C.aren't you?D.needn't you
为什么?不太懂

人气：439 ℃　时间：2019-11-15 07:32:55

解答

选项是C. 因为这里的must表推测,意思是：“想必你50岁了,是吗?”must不是表“你一定是/必须是50岁”.