Do you know Alice is well?yes,she and I____(be) friends since we met in Xi'an last summer.

问题描述:

Do you know Alice is well?yes,she and I____(be) friends since we met in Xi'an last summer.
be的适当形式填空

have been
since要用现在完成时
你跟Alice熟么?是的,自从去年夏天我们在西安见面后就成为朋友了.