问题补充：
Only when he was refused by the interviewer the importance of knowing English.
A. was he fully aware of
B. he was fully aware of
C. was fully he aware of
D. he fully was aware of
答案：
(答案→)A. was he fully aware of
B. he was fully aware of
C. was fully he aware of
D. he fully was aware of
解析：考察only的倒装句和时态。Only倒装有两个条件。当only放在句首，且强调状语的时候，后面的主句使用部分倒装的形式。本题恰好符合这两个条件。句意：只有当他在面试中被拒绝的时候，他才完全意识到英语的重要性。故A正确。
