I ,for,have ,years,been,two ,studying ,over,Chinese 怎样连词成句.

I have been ()teapots for fifteen years I have lived here for three years.I( )eating rice A.used B.used to C.have been used to I _______ here for almost 20 years. A am living B live C have been living I( ) there for three years.A went B have C haven't been Dwas I _______ here for almost 20 years. A am living B live C have been living I have __this nice watch for two years. a.had b.bought c.borrowed d.lend i have had the computer ____many years A since B in C for D / I have been (i ) in keeping fish for two years i have been there 3 years ago 还是i have been there for 3 years ago I ________ here for 10 years.A.has been B.have gone C.has gone D.have been I have lived here (for) five years. 这里的for为什么可以省略?I have studied English (for) five years. I have lived in Beijing () 20 years () I came here in 1987.A.for/since B.for/for C.in/for D.in/sinse I have studied English____ 10 years ago.A.ever since B.for 貌似选A啊= = 那for后面加10 years? I have known Sandy for two years(对for two years提问) I have been in China for 10 years 画 for 10 years 划线部分提问 I have known him for years .很多年用for years .表示? I have had the bike for ten years.I_______the bike for ten years ago. I have been a teacher for twenty years 对for twenty years提问