How many cities have you travelled to 中"to"可以省略吗?为什么?

How many cities have you visited? how many cities have you been to in china 中文 How many cities have you travelled to 中to可以省略吗?为什么? How many cities have you been to in China该怎样回答?最好是英文，详细、简单随你 How many cities are mentioned in the text? city是不是可数名词,是说how many city还是how many cities How many cities has the Smiths traveled to since they came to China last week?A.have,traveled B.was,traveledC.did,travel to D.has,traveled to How many cities have you been to in China?的意思是什么?该怎样回答?Will you return to one or two of them?Which?And when?该怎样回答? how many ()do you have? How many .does.have?造句 People in cities don't have many chances to da outdoor activities.IN CITIES 是定语么?、 还是?、状语、?、 how many cities are mentioned in the passage besides Paris?还算不算巴黎啊? How many（）do you know in our country?cities city citys选择 How many cities of the ten are in the United States是 什么 意思 英语翻译 how many apples do you have How many books do you have? HOW many apples DO YOU have? How many car do you have?