I have come to China for three years.为什么不是I have came to China for three years

I wish you come to China and have a great I with you come to China and have a great I have come to China for three years.为什么不是I have came to China for three years “I come to china a lot” I come from to China 是什么意思 Everybody is good,I am AmericanChinese friends,everybody!I have come to China tourism,excuse me China which city rich,China which city scenery,I want to buy a house in China,where do you want to buy a house? Have you ever been to the Summer Palace?—No.It is the first I _____ to China.A come B have come C am coming D came Did he come to china?和Have he ever been to china 有什么差别? 对I come to China with my parents提问 I know many (visit) come to China every year I will come back to china for a few 急用 I come back to the old time of China. I have gone away to come back . have ——Do i have to come back here tomorrow?——Yes,you_______.We still have a lot to finish before we go back to China.A have to B mustC shouldD all ABC are correct Every year many foreigners___to China to learn ChineseA have come b comes c came d come he ( ) to have a holiday in china every summer 用come over 还是come around Hello!I want to have a pen palHello!My name is Candle.I come from Guangdong,China.I am a 15-year-old girl.I live in Australia now.I have lots of girl friends in China.So I want to have a boy pen pal in China.My e-mail address is edicandle@hotmail.com I have live in apartment since I___(come)to China.The teacher___(take)away my mobile phone because I used it in class.应该怎么填?