阅读下面短文，掌握大意，然后从每题所给A、B、C、D四个选项中选出最佳答案。

Miss Wang: Good morning, boys and girls! I'm Wang Li. And I'm your English teacher.

Boys and girls: Good morning, Miss Wang!

Miss Wang : This is Helen. She is English.

Helen: I'm Helen. I'm twelve. Nice to meet you.

Miss Wang : Are you Dale?

Frank: No, I'm Frank.

Miss Wang : OK. Now, Frank, what's this in English?

Frank: It's a ruler, Miss Wang.

Miss Wang : What color is it?

Frank: White.

Miss Wang : Right. And what color is this pen?

Helen: The pen is green. And I like green. Look! My jacket is green.

Miss Wang : Great!