高二英语选择题gladtoseeyouback,howlong_
glad to see you back,how long ____ in america a did you stay b have you stay c were you staying d would you stay 为什么选择a
只是对一般过去时的提问 你肯定选B了吧? 不选B的理由就是前面那句话glad to see you back,可以知道那人现在已经回来了,如果那人现在还在美国的话,就选B,问他已经在美国呆了多长时间