读句子,选择正确的答语。 A. Good morning! B. I'm a pupil. C. Nice to meet you, too. D. He is a doctor. E. How do you do? 1.What is your father? (________) 2.How do you do? (________) 3.Good morning! (________) 4.What are you? (________) 5.Nice to meet you! (________)