back ----> return
back up ----> tie up
band try out ----> want to play in the band
bargain ----> purchase
be a little rusty ----> not do sth. very much
be a while ----> wait
be about to // busy ----> no time
be about to lift the pan ----> will soon be allowed
be astonished ----> be surprised
be at ----> attend
be booked up ----> reserve
be bored ----> have nothing better to do
be certainly/definitely news ----> be surprised
be done with // be through with ----> be finished with
be due Friday ----> be paid by the end of the week
be excited // can hardly wait ----> look forward to (doing) sth.
be exhausted ----> stay at home and rest
be fed ----> eat
be increasing controlled by banks ----> be more dependent on loans from banks
be ineligible/unfit/unsuitable for ----> can't enter
be interested in // can't put it down ----> enjoy
be just a little short of ----> need to find a few more
be left behind ----> get lost
be longer than it needs to be ----> not need to be so long
be made of/from ----> composition
be not good with dates ----> have trouble remembering when things happen
责任编辑：虫虫
