1
Look! There ... a black bird in the cherry tree.
2
Look! There ... a blackbird and two magpies in the cherry tree.
3
Look! There ... two magpies and a blackbird in the cherry tree.
4
The robber as well as his friends ... going to jail
5
The robber and his friends ... going to jail.
6
Mathematics ... my favorite subject when I was at school.
7
Acoustics ... the study of the behaviour of sound.
8
The acoustics of this auditorium ... famous.
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