----- Nội dung dịch tự động từ ảnh ----- Exercise 2: Find and correct the mistake in each sentence below. 1. We used to playing marbles many years ago. 2. He didn't used to stay up late. 3. I don't play games with him last night. 4. We go swimming with our parents last week. 5. My sister is born in 1970. 6. Childs often receive toys and cakes from Santa Claus at Christmas. 7. They usually get up early at the morning. 8. Jamie usually took a nap at 11:30 every day. 9. It is often rains in winter.