光twice 划线后用什么提问

光twice 划线后用什么提问 现在完成时中的 twice once等等 是用how long 还是how ofen we have been to china twice用什么提问划线部分 twice He has been there twice 划线提问twice I have been to Hong Kong twice.(twice划线提问) I visit them twice a year.twice划线提问 never划线用什么提问 kilo划线用什么提问 划线用什么提问啊? she goes to the dentist twice a month.twice a month划线,对划线部分提问 Wild geese change homes twice every year.（划线提问）twice every year.划线 We had history lesson twice a week ( 就划线部分提问)twice a week 这个提问. 英语对once.twice等提问用什么, 用什么对twice提问注：有三格___ ___ ___ I have been to Beijing twice.(就划线部分提问) 对划线部分提问：I watch TV (twice a week) Wild geese change homes (twice every year).(划线提问Wild geese change homes (twice every year).(划线提问) my brother goes shopping twice a month (twice a month 划线提问）急! He has been to the Gread Wall twice twice 划线提问