单项选择题

W：Why are you just standing outside instead of going in？
M：I have tried all my keys in the lock，but it won’t open.
Q：Why didn’t the man go in？（）

A．The door needs repairing.
B．He bad lost all his keys.
C．He couldn't open the door.
D．He wanted the woman to help him.

<上一题目录下一题>

热门试题

填空题

已知m，n是实数，且当x>2015时，mx－2＋nx＋2=5x＋2x2－4恒成立，则m2－n2=（）.

单项选择题

A．Father and daughter.
B．Uncle and niece.
C．Aunt and nephew.
D．Cousins.

W：Why are you just standing outside instead of going in？M：I have tried all my keys in the lock，but it won’t open.Q：Why didn’t the man go in？（）