--- This math problem is _____ hard for me to understand. Can you help me ?----Sure. It’s my pleasure.
The game is _______. I like it. A. interesting B. boring C. difficult
—Sorry, I lost my ID card. —Don’t worry(不用担心)____________
—Is that your baseball? —__________.That’s her baseball.
Mike is _____ the family photo and the photo is ______ the wall.
I know father’s mother is my _______