根据句意，用所给单词的适当形式填空。
What should we do to help the _____(home) people after the earthquake?
We do lots of outdoor _______(active) when spring comes.
By the time I got outside, the school bus _______ (leave).
Tim was seen ____ (get) out of the subway at the station on Centre Street.
I’ve bought a present for my father’s_____(forty)birthday.