成吉思汗的主要功绩是( )
A:灭亡西夏
B:统一蒙古
C:建立元朝
D:定都大都
____ ____good idea that is!
选择合适的句子补全对话。
Amy: Where is my ruler, John?
John:____
Amy: No, it's not in my pencil box.
Amy: Yes, thanks.
A. Look, it's on your desk. B. Is it in your pencil box?