-----What happened here yesterday? -----An adventurer w

题干

-----What happened here yesterday?
-----An adventurer was walking at the foot of the mountain ______ suddenly a stone fell and hit him on the head.

A．where

B．while

C．how

D．when

上一题下一题 0.85难度单项选择更新时间:2010-06-08 12:57:56

小学学科试题库

初中学科试题库

高中学科试题库