After all she thought her brother was enjoying himself and had gone ..... to work in America as a result of the brain drain (talented people leaving their own country to work for better pay in another).

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After all she thought her brother was enjoying himself and had gone ..... to work in America as a result of the brain drain (talented people leaving their own country to work for better pay in another). (*) astray (*) abroad (*) alone (*) afar

This is a companion discussion topic for the original entry at https://english.best/questions/4898,after-all-she-thought-her-brother-was-enjoying-himself-and-had-gone-___-to-work-in-america-as-a-result-of-the-brain-drain-talented-people-leaving-their-own-country-to-work-for-better-pay-in-another/