Did you see the CCTV news on TV last night?—Yes, ______ children had a good festival on Children’s Day.

Excuse me. May I sit here?—I’m afraid you _________. My daughter will come back soon.

While he was investigating ways to improve the telescope, Newton made ________ discovery which completely changed ________ man’s understanding of color.

I’ve always dreamt ______ living in a big house. After many years’ hard work, I’m thinking _____ moving and changing my small house ______ a larger one.

Nancy writes books ______ children ______ 14-15. [ ]