单项选择题

Only when he has lost his way ______ that he wasn' t careful enough to make sure that he really did understand.

A．he realize
B．he can realize
C．he has realized
D．does he realize
<上一题 目录 下一题>
热门 试题

单项选择题
______ the balcony, it could have saved me a lot of troubles.
A．Have I known
B．Had I known
C．I have known
D．I had known
单项选择题
Now almost all the students have a monthly ______ towards their expenses.
A．salary
B．allowance
C．wage
D．fee
相关试题