My brother ______ on business for three weeks.he will be back in _英语解答

My brother ______ on business for three weeks.he will be back in two weeks.
A.has left
B.has been away
C.left
D.has gone

人气：486 ℃　时间：2019-08-22 12:34:59

解答

BD为什么不行？be away on 什么意思？我的兄弟这三个月离开去做生意了，两周后他会回来的。be away不在，离开了+ on business去做生意，出差