Escríbanse las frases siguientes, cambiando al plural los sustantivos que aparecen subrayados. En algunos casos, hay que hacer algunos cambios adicionales para que las frases tengan sentido.

1.- There´s a piano in that room.
2.- Look, there´s a fly on the ceiling.
3.- The knife is on that table.
4.- The man came with his wife.
5.- My child has just come home from school.
6.- I can see a sheep in that field.
7.- The watch was in the box.
8.- The ox was near the farm.
9.- The books are on that shelf.
10.- I´ve caught a trout.
11.- The boy sent a letter without a stamp on it.
12.- Is this a glass?
13.- Is there a lady in the shop?
14.- That boy wants to go to Liverpool
15.- This is a mouse.

Respuestas:
1.- there are some pianos in that room.
2.- look, there are some files on the ceiling.
3.- the knives are on that table.
4.- the men came with their wives.
5.- my children have jut come home from school.
6.- i can see some sheep in that field.
7.- the watches were in the box.
8.- the oxen were near the farm.
9.- the books are on those shelves.
10.- i´ve caught some trout.
11.- the boy sent some letters without any stamps on them.
12.- are these glasses?
13.- are there any ladies in the shop?
14.- those boys want to go to Liverpool.
15.- these are mice.