把下列的句子改为感叹句。<答案不唯一> 1. A: Jill is drawing a beautiful picture. B: ___________________________ 2. A: Mr Wang is a busy man. B: ___________________________ 3. A: The tractor is going very slowly. B: ___________________________ 4. A: He is very lucky. B: ___________________________ 5. A: It is a wet day today. B: ___________________________ 6. A: They waited a long time. B: ___________________________ 7.A: The cats are very happy. B: ___________________________