问题描述：
5.After a long and tiring journey,they arrived ________.
A.till the last B.at last C.by the end D.at the end
6.They usually have less money at the end of the month than
________ at the beginning.
A.which B.which was C.they have D.it is
A.till the last B.at last C.by the end D.at the end
6.They usually have less money at the end of the month than
________ at the beginning.
A.which B.which was C.they have D.it is
问题解答：
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