397.He began to take political science _______ only when he left school.

A.strictly

B.truly

C.carefully

D.seriously

398.It's hard for him playing against me.I've got nothing to play for,but for him,he needs to win so _______.

A.far

B.well

C.little

D.badly

397.答案是D;

固定搭配:take sth.seriously 严肃，认真地对待某事。

398.答案是D;

此题中badly非常，极度。句意:…他非常想赢。