根据句意，中文提示，写出所缺单词，使句子通顺。
--- What about going on ____________(野餐) this Sunday?   ---That sounds good.
Boys and girls, please give me your _________(理由) for doing these things.
What ___________(其它的) do you like, Jack?
We have two ______________(地理) lessons every week.
My cousin, Daniel, often ___________(训练) volleyball after school on Wednesday. .