there are,there are是什么意思

五年级上英语课件-module 5 unit 1 there are only
there is 和there are来造句,每个都要造5句
外研社英语一下module 7 unit 2 there are three brown monkeys课件
系列课件(第2课时)1:there are only nineteen crayons.
there are two dogs under the tree.