the (r )why I bought this sweater was that it was so cheap

问题描述:

the (r )why I bought this sweater was that it was so cheap
.but(s ) these people can't find work or good places to live.
but ( b )they move to a big city ,they'd better think about the problems first.根据首字母填空

1 reason 原因
2 sometimes 有时
3 before ...之前
你的采纳是我们答题的动力,but ( b)they move to a big city ,they'd better think about the problems first.根据首字母填空before...之前