问题补充:
He your car by mistake because he didn have the keys.
A. mustn have taken
B. shouldn have taken
C. couldn have taken
D. needn have taken
答案:
A. mustn have taken
B. shouldn have taken
C. couldn have taken
D. needn have taken
解析:从语意“他不可能误开了你的车,因为他没有钥匙”可知,此处应选择couldn have taken。