( )I was walking along the street ____I met a friend of mine.A.while B.when C.as D.then
问题描述:
( )I was walking along the street ____I met a friend of mine.A.while B.when C.as D.then
答
B.
首先,C、D肯定不选,就看A、B
while 表状态,met是一瞬间的.
但如果是i met a friend of mine while i was walking along the street.这就对了