—Look! Here comes the bus and I have to go now. Thank you for seeing me off.—Goodbye, and !
与r相邻的字母是________.
--- If I_______ one million dollars, I would give it to medical research. ---If I _______ you, I would give it to charity.
I like singing and ________ Tom.
Helen ________watch TV at home _______ hang out with her friends.
---____ do you study for a math test? ---I study math ____ lots of exercises.