阅读小天地。 There are fifty students in Bob's class. There are twenty-six girls and twenty-four boys. It's Sunday today. They're having fun in a park. Some students are singing. Some are jumping. Some are playing badminton. Bob is flying a kite. They are all laughing. They're very happy! 根据短文内容判断,下列句子的正(√)误(×)。 ( ) 1. There are twenty-six boys in Bob's class. ( ) 2. It's Sunday today. ( ) 3. They are in a zoo. ( ) 4. Bob is singing. ( ) 5. They're not happy.