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( ) ( ) ( ) ( ) ( ) ( )2. Listen and tick or cross. 聽音,判斷。 She is / They are dancing. He is / They are cooking. She is / They are riding a bike. He is / They are watching TV. He is / They are making a plane. She is / They are playing football.5. Look and tick or cross. 看圖判斷。 is: 用于單數(shù),表示只有一個。are: 用于雙數(shù),表示兩個或兩個以上。1. 2.1. The tigers are sleeping. ( ) zebra is riding a bike. ( ) 3. 4. snakes are eating. ( ) tu