She is very_______ about her success, though she’s achieved a lot.

A．careful

B．certain

C．modest

D．anxious

口语运用。

在下列横线上填入合适的单词,使对话完整通顺。

Tom: Good afternoon.

Jim: Good afternoon.

Tom:    1    are you?

Jim: I'm fine, thank you. And you?

Tom: I'm    2   .Thank you. Who is the girl?

Jim: She is my sister. She is a    3    .

Tom: Is she    4   English teacher?

Jim: Yes, she is.

Tom:    5    is the boy?

Jim: He is my brother. He is a student.