根据短文内容，回答问题。 Lessons start at two o'clock in the afternoon. There are two lessons. We have history and chemistry. I like chemistry. It's my favourite lesson. After class, we do activities on the playground. Some play football, some play table tennis, and others (其他的) play games. My favourite sport is basketball, so I play basketball with my friends. We leave school at half past four. 1. What time do lessons start in the afternoon? _________________________ 2. How many lessons are there in the afternoon? _________________________ 3. What's the writer's (作者的) favourite lesson? _________________________ 4. Is table tennis the writer's favourite sport? _________________________ 5. What time does the writer leave school? _________________________