d.Had he studied hard
这里考的虚拟语气
本来叫If he had studied hard,he would have been able to pass the exam.
If的条件句内部可以把IF省略,然后主谓倒装
明白了么
d.Had he studied hard
这里考的虚拟语气
本来叫If he had studied hard,he would have been able to pass the exam.
If的条件句内部可以把IF省略,然后主谓倒装
明白了么