求救啊!!!!!!!!!!!!

The boys --- ---(play) football white the girls were singing and dancing under the tree.

white是不是打错了?
是while吧

当女孩们在树下唱歌跳舞的时候，男孩们在踢足球。

所以应该是were playinig

were playing
while表示两件事情同时发生

were playing

were playing

The boys were playing football while the girls were singing and dancing under the tree.

当那个女孩在树下唱歌和跳舞的时候那个男孩在踢足球