单选（1-3）

1. They might have found a better hotel if they _____ a few more kilometers.

A. drove B. would drive C. were to drive D. had driven

2. I don’t think Mr. Tyler’s lecture _______ the student, for they appeared quite puzzled.

A. got across to B. got through

C. turned to D. caught up with

3. Not until they had a heart-to-heart talk with me _____.

A. I had realized my mistake B. had I realized my mistake

C. I realized my mistake D. did I realize my mistake