A. give children correct answers B. point out children’s mistakes to them all the time C. allow children to mark their own work D. encourage children to copy from one another
单项选择题How much is the free luggage allowance for an average passenger（）
A. 35 kilos. B. 20 kilos. C. 10 kilos. D. 5 kilos.
单项选择题What is Peter’s favorite sport（）
A. Basketball. B. Football. C. Ping-pong. D. Swimming.
