Nobody has the right to laugh at others _________ he is right.
---Is this his book?--- . It’s her book.
-- is Judy?---She is 1.6 meters tall.
---Mum, is my friend, Jim.---Nice to meet you.
Tom is 8-year-old boy.
If you want to play the guitar well, you must do a lot of practice.A. time B. exercise C. homework