Điền từ thích hợp vào chỗ trống

----- Nội dung dịch tự động từ ảnh -----
we need to work together to find the solution.
he is absent from school.
12. This is a complex problem,
13. Peter doesn't feel today,
14. They thought they won the match,
15. My siblings and I don't share many similarities,
it turned out that they were losers.
we are in harmony with each other,
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