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(gè)小時(shí)了。for three hours表示一段時(shí)間的時(shí)間狀語(yǔ)，句子用現(xiàn)在完成時(shí)，be out 表示狀態(tài)，動(dòng)作可以延續(xù)，故選B
點(diǎn)評(píng)：非延續(xù)性動(dòng)詞向延續(xù)性動(dòng)詞的轉(zhuǎn)變熟記一下幾個(gè)：
leave --- be away,  borrow --- keep,   buy --- have,  begin/start --- be on,      die --- be dead, leave --- be away from, fall asleep --- be asleep