Who told Alexander the Great “stand out of my sunlight”？（）

Where should you begin your research on complex and ser...

单项选择题Where should you begin your research on complex and serious topics？（）

The fire quickly spread to（A）the first floor where（B）it...

问答题

The fire quickly spread to（A）the first floor where（B）it destroyed（C）all the equipments（D）in the language lab.

The reason（A）Tom has made great progress（B）is for（C）she...

问答题

The reason（A）Tom has made great progress（B）is for（C）she has never wasted（D）her time.