HE WOULDN'T HAVE FAILED HIS EXAMS _______ HE HADN'T BEEN ILL.A. UN...
29. He wouldn't have failed his exams _______ he hadn't been ill.
A. unless
B. in case
C. if
D. although
29. He wouldn't have failed his exams _______ he hadn't been ill.
A. unless
B. in case
C. if
D. although