Indirect questions: if vs. whether (draft)

Дата публикации: Aug 01, 2021 1:14:35 PM

http://dictionary.cambridge.org/grammar/british-grammar/if-or-whether

http://www.quickanddirtytips.com/education/grammar/if-versus-whether

http://www.grammar-monster.com/easily_confused/if_and_whether.htm

http://www.bbc.co.uk/worldservice/learningenglish/radio/specials/1535_questionanswer/page33.shtml

http://magoosh.com/gmat/2012/gmat-sentence-correction-if-vs-whether/

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