Knowledge（）human beings into civilization.

单项选择题An（）young man can go far in this university.

A.assertive
B.illegal
C.aggressive
D.affectionate

单项选择题You don't have to show（）to me. You can have your own ideas.

A.attachment
B.aggression
C.submarine
D.submission

单项选择题His scientific interests cover a wide（）

A.scale
B.territory
C.draft
D.instinct

单项选择题The trip to the museum has been（）until Thursday 11th March.

A.lengthened
B.postponed
C.frowned
D.cancelled

单项选择题I'm sure Harry will remember, but why not give him a ring（）he forgets?

A.in the case
B.in case of
C.in case
D.in the case of