1 . He might have already recovered from his illness ________ the fact that he didn’t follow the doctor’s advice.

A．if it was not for

B．were it not for

C．if it should not be for

D．had it not been for

2 . Our teacher urges us to study hard, as the exam is drawing near. (句型转换)
→ Our teacher urges that we should   ________   ________.