题目内容：

读对话,回答问题
Mingming:What do you see?
Dingding :I see my classmates.
Mingming:What are they doing? Are they picking up leaves?
Dingding :No,they aren't.
Mingming:Are they catching butterflies?
Dingding :No,they are watching insects.
问 题:What are Dingding's classmates doing?
Answer :_______________________________.

优质解答

they are watching insects