professor中文意思是？

A. 专业的，职业的
B. 教授
C. 专业，职业

"联系"的英文是？

A. contract
B. contact
C. contrast

初次见面，可以使用以下哪些表达？

A. Nice to meet you.
B. How do you do?
C. Glad to meet you.

How can I contact you?

Some people _______ the future but also worry about new changes in their life.