-------There were already five people in the car but they managed to take me as well .　　

问题补充：

-------There were already five people in the car but they managed to take me as well .

------- It a comfortable journey .

A. can’t be

B. shouldn’t be

C. mustn’t have been

D. couldn’t have been

答案：

A. can’t be

B. shouldn’t be

C. mustn’t have been

(答案→)D. couldn’t have been

解析：

本题测试的是情态动词在具体情景中的应用。只有从上文得知“五个人挤在一辆汽车里，又加进去一个人”，才能推断出下文“这次旅行不可能舒服。”才能选对D项。