Many students in our school the old and they usually offer their seats to them on buses.A

问题补充：

Many students in our school the old and they usually offer their seats to them on buses.

A. worry about

B. care for

C. agree with

D. take care

答案：

A. worry about

(答案→)B. care for

C. agree with

D. take care

解析：worry about焦虑，担心；care for关心，照顾；agree with同意，和……意见一致；take care注意，小心。句意：这所学校的许多学生照顾老人，他们通常在公交车上为他们（老人们）提供座位。结合语境可知选B。