Câu 4: Find the mistakes and correct . 1. John are cleaning the room at the moment. A. are B. cleaning C. the room D. at 2. I swim usually at the weekend. ​​​​​​​ A. I B. swim usually C. at D. the weekend 3. I and Lan rides a bike to school everyday. A. Lan B. rides C. a bike D. to school 4. Are you siting on the bed now? ( câu này bt r nha tại đưa lên cho có =)) A. are B. siting C. on D. now 5. My mom dont usually go to work on Saturday. A. My mom B. don't C. go to work D. on Saturday