We all know that dinosaurs lived on the Earth more than ______ years ago.
Little joy can equal_______ of a surprising ending when you read stories.
-I want a ticket to Hainan this afternoon, please.- OK. Will you please_______ me your ID card?
Of the seven days in a week, Saturday is said to be the most popular_______ for a wedding in some countries.
It's not_______ good idea to work hard for four hours without_______ break.
---My children are always arguing.---_____________.