Question

--- Is your father in?
--- No, he ______ for three hours.

A．was out

B．has been out

C．went out

D．has gone out

Answer 1

B

試題分析：句意：你的父親在家嗎？不，他已經(jīng)出去三個小時了。for three hours表示一段時間的時間狀語，句子用現(xiàn)在完成時，be out 表示狀態(tài)，動作可以延續(xù)，故選B
點(diǎn)評：非延續(xù)性動詞向延續(xù)性動詞的轉(zhuǎn)變熟記一下幾個：
leave --- be away,  borrow --- keep,   buy --- have,  begin/start --- be on,      die --- be dead, leave --- be away from, fall asleep --- be asleep