He'll be really disappointed ___ he fails his exams 1) until 2) if 3) after 4) when 5)...

Question

He'll be really disappointed ___ he fails his exams 1) until 2) if 3) after 4) when 5) unless​

Answer 1

Ответ:

if

. . .......................

Answer 2

He'll be really disappointed if he fails his exams-Он будет очень разочарован, если провалит экзамены