YDS NOUNS/ARTICLES/QUANTIFIERS/PRONOUNS / TEST 2 28. Soru
🏆 Bu Testin Birincisi: Worstofenglish
Başarı Yüzdeniz : 100 %
28.
- On international airlines, there are always
......... a pilot and a co-pilot and each knows the
other's job, so, in the event that........ falls ill
during the flight, the other is qualified to land
the plane safely.
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