She is very hard-working,_______ he is very lazy.应选什么?为什么?A.while B.when C.as D.if
问题描述：
She is very hard-working,_______ he is very lazy.应选什么?为什么?
A.while B.when C.as D.if
答
A表转折
她很勤奋,但他很懒惰
答
选A吧,轻微转折关系
答
A
意思是她很勤奋,而他却很懒惰.
while 表示转折和对比.