how long have you been —— this school?为什么不用On 用in?
how long have you been —— this school?为什么不用On 用in?
介词及介词短语--How long have you been in this school?--( )two year
How long have you ever been on our school team?
how long have you been like this中为什么用been
How long have you been like this?
How long have you been living in China?为什么要用been,living是延续性动
how long have you been in china中为什么要用have呢?
How long have you been in China?
How long have you been in China
long have you been in this city?
How long have you been like this?——Every day since ( )mouth.
How long have you been 为什么加suffering from a headache不用suffer