giúp em ạ ----- Nội dung dịch tự động từ ảnh ----- REEFFA Is the boy reading? Are the girls playing chess? a. Yes, he is. a. Yes, they are. b. No, he isn't. b. No, they aren't. 3. 4. Is the monkey playing with a ball? Is mom shopping? a. Yes, it is. a. Yes, she is. b. No, it isn't. b. No, she isn't.
