“There were already five people in the car but they managed to take me as well.”“It________ a c

题目

“There were already five people in the car but they managed to take me as well.”“It________ a c
“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
【精析与答案】 D.从上句得知“已有5 个人在车上”,故“一
路上不可能舒适”(含“车内很拥挤”之意).
为什么呀AC

答案

mustn't 不用来表示推测.要用can't 或couldn't.后接动词原形（常为be）推测现在和未来.后接have done 推测过去发生过的事.