They are at a came ing site.对They提问
They are at a came ing site.对They提问
连词成句 they a site at are camping
They are at a camping site.为什么用at ,可不可以这样,They are a camoing
They are listening to a CD at home now.对at home now提问
They have a parry at home 对at home提问
they (are relaxing) at home.对括号提问 ____ ____ they ____ at hom
they work (at a school) 对括号部分提问
They are a hundred yuan(对a hundred yuan提问)
they are (having a PE lesson.)对括号提问?
they are sitting at a
They are at home ,last evening对at home ,last evening提问
They are at the doctor's 对at the doctor's提问.