完成句子

根据所给提示，完成句子。每空一词，含缩略词。

1.She does homework at home.. (改为一般疑问句)

__________she__________ homework at home?

2.The watch in the box might be his. (对划线部分提问)

__________ __________ might be his?

3.He bought a car three years ago. (改为同义句)

He __________ __________a car for three years.

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 __________ __________.

根据所给提示，完成下列句子。每空一词，含缩略词。
【小题1】You need to look up the word in the dictionary. (变否定句句)
You ________ ________ to look up the word in the dictionary
【小题2】I’d like to go to Guilin on vacation.（对划线部分提问）
Where _________ you _________ to go on your vacation? 
【小题3】Linda takes care of her younger sister. (同义句)
Linda ________ _________ her younger sister.
【小题4】当他正走在街上时，看见事故发生了。
He saw the accident _________ while he was _________ down the street.