She got up early,and( )she failed to attend the meeting on t

A,yet
and yet 可是,然而
她起得很早,可是/然而他没能赶上参加这个会议.
再问： Though he studies hard,( )he doesn't pass the exam.A.but B./
再答： B/ 就是不填， 英语的规则是，转折辞职用一个。 如果前面没有though，即： He studies hard, but he doesn't ....就要加but了。