my sister has been in Hefei for three years.she()French in Anhui university为什么填has been learning,而不是填has learning ,而且他不是在学法语吗?为什么不能用一般现在时.学习不是主动学的吗?为什么用被动形式?

my sister has never been to america i haven't neither（　）　（　）my sister and me has been to American句型转换是my sister has never been to america i haven't either my sister has s___hair and i have curly hair, my sister has shorter hair than i比较级讲解 My sister has been dancing for 10 years,(改为同义句)____ ____10 years ____ my sister ____ ____ dance. my sister has been staying in beijing for three months.这是什么时态,翻译 My sister has been working ()western China since graduated.A:at B:in C:on D My sister has been working for this firm 与My sister has already worked for this firm是一样的吗? has married和has been married有什么不同?具体的用法是怎样?My sister has been married for 5 years.My sister has married. Don't disturb.分别是什么意思？ .My host sister Brooke and I ______ in the same grade and we spend a lot of time together.A.am B.are C.has been D.have been Lily is my sister.I have()sister She has been _____North City Park three times with my sister.A.on B.in C.about D.to my sister _______(stay)in Beijing for three months last year为什么用stayed不用has been staying 21.my sister has been studying for a test____a week.A.in B.since C.before D.for my sister has been working in a company ___computers after graduation.为什么用selling 不用to sell I think my sister has just come home.Look,the light____(turn)on now. I have short hair.My sister has long hair.合并成一个句子 1.My sister makes a l____ by giving piano lessons.2.I forgot your address.I can't r____ the way to your home.3.Some sports are very dangerous and the players often get i____.4.The skating m____ has been going for four hours.5.He has been collecting t It has been in my