根据句意，用所给单词或短语的适当形式填空。（每词或短语只限使用一次）。

These shoes are too big for my ________.
It is a _______ day. Let’s go outside and play.
In spring, I often ________ in the Red Star Park.
Michael _______ his old friend Lily this morning.
Susan will sing some pop songs at her ______ concert.