完成句子
根据所给提示，完成句子。每空一词，含缩略词。
小题1:She does homework at home.. (改为一般疑问句)
__________she__________ homework at home?
小题2:The watch in the box might be his. (对划线部分提问)
__________ __________ might be his?
小题3:He bought a car three years ago. (改为同义句)
He __________ __________a car for three years.
小题4:如果努力学习，我们的梦想就会实现。(完成译句)
If we work hard, our dream will __________ __________.
