Have you ever had trouble communicating in English in some other country?
Were there people who couldn't understand your English during your travels abroad?
ーHave you ever had trouble communicating in English in some other country?
「外国で、英語が通じなくて困ったことはありますか？」
to have trouble communicating in English で「英語が通じなくて困る」
ーWere there people who couldn't understand your English during your travels abroad?
「外国に旅行中、あなたの英語が理解できなかった人はいますか？」
during one's travels abroad で「海外旅行中」
ご参考まで！
カナダ 
