Question

 He told us that he was tired and thirsty because he ________ in the desert for days.

A．walked	B．has walked
C．had walked	D．would walk

Answer 1

C

試題分析：句意：他告訴我們他又渴又累因?yàn)樗�在沙漠中行走了好幾天。根�?jù)動(dòng)作發(fā)生的時(shí)間可知在沙漠中行走發(fā)生在他告訴我之前，他告訴我發(fā)生在過去，所以在沙漠中行走發(fā)生在過去的過去，故用過去完成時(shí)態(tài)，故選C。