根据材料内容选择最佳答案。
Mr. Green: Good morning, boys and girls! My name is David Green. I'm your new English teacher. You can call me Mr. Green. I come from the USA, but I'm in Luoyang now.
Boys and girls: Good morning, Mr. Green!
Mr. Green: Are you Dave?
Bill: No. I'm Bill. He is Dave
Mr. Green: OK. Now, Bill, what's this in English?
Bill: It's a ruler. Mr. Green.
Mr. Green: What color is it?
Bill: White.
Mr. Green: Right. And what color is this pen?
Bill: It's blue. I like blue, because I like the sea.
Dave: I like green. Look! My jacket is green.
Mr. Green: Great!
Word Bank:new新的; come from来自; right正确;like喜欢; because因为;sea大海