_____ the box there is nothing but a piece of paper?

_____ the box there is nothing but a piece of paper?

题目
_____ the box there is nothing but a piece of paper?
还有,请帮忙做下此题:Tom didn't help mother with housework,but he does now.(合并句子)Tom_____ _____ _____ _____ mother with housework.)
答案
In the box there is nothing but a piece of paper.
Tom has started to help mother with housework.
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