The door ______ open,no matter how hard she pushed.A.couldn't B.wouldn't 求解释、分析
问题描述：
The door ______ open,no matter how hard she pushed.A.couldn't B.wouldn't 求解释、分析
答
选B
这么解释吧：
Man could open the door
The door wouldn't open
主语不同,用不同的词