—Have you ____ joined in a dragon boat race?—Yes,I have.
—The noise from the railway really drove me .—Oh, it’s your fault to live near there.
—Oh, my roommate always made a mess of our living room.— . He promised to clean everything off late.
—Tom graduated and got his degree in Business management. — .
— Generally speaking, light ___ faster than sound. — Yes, it is a rule.
–Is Miss Green in the office?--No, she ____ to the library.