看图,根据提示选择正确的答语。 ( ) 1. Are they sheep? A. Yes, they are. B. No, they aren't. ( ) 2. Are these cows? A. Yes, they are. B. No, they aren't. ( ) 3. Are those cucumbers? A. Yes, they are. B. No, they aren't. ( ) 4. Are they horses? A. Yes, they are. B. No, they aren't. ( ) 5. How many tomatoes are there? A. Four. B. Three.