It’s ten o’clock.I must go ________.
---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 is8-year-old boy.
If you want to play the guitar well, you must do a lot of practice. A. timeB. exercise C. homework