Keep in touch means maintain communications

[Keepi]

English Language Tests, Intermediate level

ESL/EFL Test #694 "English Slang Idioms (436)", question 1

"You might want to be more polite when addressing the managers at the meeting. You ruffled a few ......... last time when you interrupted some of the them," Dana told Frank.

(a) shirts
(b) cards
(c) collars
(d) feathers

English Language Tests, Intermediate level

ESL/EFL Test #694 "English Slang Idioms (436)", answer 1

"You might want to be more polite when addressing the managers at the meeting. You ruffled a few feathers last time when you interrupted some of the them," Dana told Frank.

Correct answer: (d) feathers
_________________________

keep in touch

[Mister Micawber]

maintain communications
_________________
Native English teacher at Mister Micawber's

[WhiteRussian]

Why not 'maintain communication'?

[Mister Micawber]

No reason, Cookie. Why do you bring that up?
_________________
Native English teacher at Mister Micawber's