In Colombia people often just drop by their friends because they don’t have to make plan

问题补充：

In Colombia, people often just drop by their friends because they don’t have to make plans to meet friends.

A. give a ride to

B. drive to see

C. hang out with

D. come over to

答案：

A. give a ride to

B. drive to see

C. hang out with

(答案→)D. come over to

解析：句意：在哥伦比亚，人们经常来看望他们的朋友，因为他们不必计划去拜访朋友。Drop by = come over to过来，顺便来访，所以选D。