Sayeth the EU: lack of language skills mean that UK citizens are under-represented in the EU civil service.
Entirely possible; due to the fact that English is understood the world over, relatively few people take the time needed to really be comfortable in other languages.
That said, there are a good few people out there who have studied foreign languages, and are fluent in it. So there may well be another reason that people aren’t willing to leave London and work in Brussels with a bunch of squabbling folk in an institution that many here believe is, at best, a nuisance.
But I can’t quite think of what that reason might be…