单项选择题

Section A
Directions:This section is to test your ability to give proper answers to question. There are 5 recorded dialogues in it. After each dialogue, there is a pause. The questions will be spoken two times. When you hear a question, you should decide on the correct answer from the 4 choices marked A), B), C) and D) given in your test paper. Then you should mark the corresponding letter on the Answer Sheet with a single line through the center.

Is this the first time you have traveled by air？（）

点击查看答案&解析