I’m having trouble ____foreigners.A-understand B-understanding

I’m having trouble ____foreigners.A-understand B-understanding 改错：I'm having trouble to learn English. I'm sorry you are having trouble in making friends.是啥意思? I'm having trouble后面接什么?do?to do?doing? I'm sorry you are having trouble in making friends的英文翻译是,sorry的意思是什么? now i'm having I'm having her _ EnglishI'm having her _ EnglishA.teaches B.teach C.to teach D.taugh这道题选什么？是什么意思？i'm 后面接having，接着又接her, 这是什么结构啊？ I am having some trouble with my classmates at the moment里面的have trouble I was having trouble just drawing breath中drawing breath是否是分词,修饰trouble 请英语高手帮忙分析句子结构请英语高手帮忙分析下这个句子结构：I'm having trouble with my classmates. -What's the matter?-I'm having trouble _______ who has taken my book.A.finding B.looking for C.finding out D.looking up 英语翻译I'm sorry ______ trouble you i'm sorry to trouble 如题 The Trouble I'm In 歌词 The Trouble I'm In 歌词 I'm sleeping .don't trouble me i am sorry _ you so much trouble,i really appreciate your helpa:to giveb:to have givenc:giving d:having given请详细说明,最好说明每个选项的原因. having drunk some milk i have some trouble with my stomach这里为什么用having而不用have?为什么?