根据中文提示写出单词或词组，使句意完整、正确。
— Which sport will you take part in?
—The _______(男子) 800-meter race.
— Let’s ____(约定)it half past six.
— OK!
— How often do you walk to school?
—_____ (一次) a week.
—Mom, look! Dad is on TV!
— I’m _____ (就来).
— Excuse me, may I ______（借）your storybook, sir?
— Of course. Here you are.