经典例句] 1. If you copy my homework this time, you will start a bad habit. 2. I’ll ask the teacher for help if I don’t understand. 3. If the traffic lights are red, you must stop and wait. 4. You can pa...
经典例句] 1. If you copy my homework this time, you will start a bad habit. 2. I’ll ask the teacher for help if I don’t understand. 3. If the traffic lights are red, you must stop and wait. 4. You can pa...