My uncle goes to the dentist's once a month.划线部分提问划线部分是once

问题描述:

My uncle goes to the dentist's once a month.划线部分提问
划线部分是once

How many times does your uncle go to see the dentist's a month?

How long does your uncle go to the dentist's?
你叔叔多久去看一次牙医?

你叔叔多久去看一次牙医

How many times does your uncle go to the dentist's

应该是:
How many time does your uncle go to the dentist's a month?
你叔叔一月去看牙医几次?
once 一次 ,对次数提问用how many times