We have't heard from David since he left Shanghai.(对划线部分提问,划
We have't heard from David since he left Shanghai.(对划线部分提问,划
We haven't heard from David since he left Shanghai.[对划线部分提问]
We haven't heard from David (since he left Shanghai).(对括号部分提
he comes from Shanghai.对划线部分(Shanghai)提问
We have been here since 2011对划线部分提问.划线部分是since 2011
He heard a strange whisper from the bushes.(对划线部分提问) _ _ he
He heard from his mother( yesterday)(对划线部分提问)
We have seen the same doctor several times.(对划线部分提问,划 severa
We usually have P.E.on Tuesday.(对划线部分提问)划的是on Tuesday
They have been friends since they were children(对划线部分提问)划住的是
Mary lives in Shanghai,对划线部分提问,划得是Shanghai
He looks strong.对划线部分提问划strong