There______two boxes of milk on th table.
问题描述：
There______two boxes of milk on th table.
答
are，因为two boxes of milk是复数，所以be动词也要用复数。
桌上有两盒牛奶
答
There__are____two boxes of milk on th table
桌子上有两盒牛奶
答
are
答
are 以量词为准