选用方框所给词的适当形式填空

I hope all of you can enjoy ____________ during the trip to the Great Wall.
We had a big cake on my grandparent’s ______________ birthday.
Lin Zexu was one of the most famous national ____________ in recent history.
Tom fell off the bike. ___________, he didn’t hurt himself.
There will be even ________________ time for our interests in Grade 9.