1.They are happy 改为一般疑问句,并作肯定回答 2.He is a tall boy 改为一般疑问句 3.Glad to meet you 改为同义句

问题描述:

1.They are happy 改为一般疑问句,并作肯定回答 2.He is a tall boy 改为一般疑问句 3.Glad to meet you 改为同义句

Are they happy?Yes,they are.
Is he a tall boy?
Nice to meet you.