题目内容
My friend’s plane had taken off I got to the airport to see him off.
| A．until | B．while |
| C．after | D．before |
D
解析试题分析：句意：在我到机场为朋友送行前，我们的朋友的飞机已经起飞了。根据及根据的时态过去完成时，可知飞机起飞在到机场之前，故选D。
考点：考查连词的用法。
练习册系列答案
相关题目
You won't work out the problem ______ you understand it. So listen to me explain now.
| A．since | B．when |
| C．unless | D．though |
---You bought the car ten years ago? ---Yes. ______ it’s old, it still runs well.
| A．Because | B．Since |
| C．Although | D．But |
We need to practice speaking English every day, __________ our spoken English won’t become better.
| A．so | B．and |
| C．or | D．but |
—Look! Some people are running the red lights.
—We should wait they are breaking the rule.
| A．if | B．although |
| C．unless | D．because |
_______ he did well, he was never top of his class.
| A．Although | B．But |
| C．Because | D．Since |