根据句意填入所缺单词

问题描述:

根据句意填入所缺单词
1.________they find that lost magazine,they have to pay for it.
2.Can you talk to me later?I'm busy at the _____.
句型转换
He saw the bird two minutes ago.同义句
He ____ ____ ____ the bird.

Unless
moment
has already seen