根据句意完成已给出首字母或汉语提示的单词，使补全后的句子意思通顺，语法正确。
Now the students have no lessons on S__________ and Sunday.
It’s cold in Australia in July. People there wear w_______ clothes.
Hangzhou has lots of wonderful s__________. West Lake is just one of them.
Ann kept s_________ all day because his little brother broke her toy bear.
Bob is six feet in __________(身高)
It’s good manners to keep your _________(声音) down in public.
My parents usually __________(花费) lots of money on books.
—— What’s your biggest _________(问题)?
—— I don’t have enough time to sleep.