Complete with was/wasn't or were/weren't to make true sentences.

(-) Julius Caesar
wasn't
the first Roman emperor.
(+) Valentina Tereshkova

the first woman in space.
(+) Mozart

the composer of the Magic Flute.
(-) The Olympic Games

in Tehran in 1996.
(-) Vincent Van Gogh

a sculptor.
(-) The 2002 football World Cup

in Dubai.
(-) The Incas

from Spain.
(-) The Beatles

from Paris.
(-) Socrates and Plato

Indian philosophers.
(-) Che Guevara

born in Italy.
(+) Albert Einstein

a scientist.(-) Julius Caesar
wasn't
the first Roman emperor.
(+) Valentina Tereshkova

the first woman in space.
(+) Mozart

the composer of the Magic Flute.
(-) The Olympic Games

in Tehran in 1996.
(-) Vincent Van Gogh

a sculptor.
(-) The 2002 football World Cup

in Dubai.
(-) The Incas

from Spain.
(-) The Beatles

from Paris.
(-) Socrates and Plato

Indian philosophers.
(-) Che Guevara

born in Italy.
(+) Albert Einstein

a scientist.

(-) Julius Caesar wasn't the first Roman emperor.
(+) Valentina Tereshkova was the first woman in space.
(+) Mozart was the composer of the Magic Flute.
(-) The Olympic Games weren't in Tehran in 1996.
(-) Vincent Van Gogh wasn't a sculptor.
(-) The 2002 football World Cup wasn't in Dubai.
(-) The Incas weren't from Spain.
(-) The Beatles weren't from Paris.
(-) Socrates and Plato weren't Indian philosophers.
(-) Che Guevara wasn't born in Italy.
(+) Albert Einstein was a scientist.

Explanation:
- In the first sentence, we use "wasn't" because Julius Caesar was not the first Roman emperor.
- In the second sentence, we use "was" because Valentina Tereshkova was the first woman in space.
- In the third sentence, we use "was" because Mozart was the composer of the Magic Flute.
- In the fourth sentence, we use "weren't" because the Olympic Games were not in Tehran in 1996.
- In the fifth sentence, we use "wasn't" because Vincent Van Gogh was not a sculptor.
- In the sixth sentence, we use "wasn't" because the 2002 football World Cup was not in Dubai.
- In the seventh sentence, we use "weren't" because the Incas were not from Spain.
- In the eighth sentence, we use "weren't" because the Beatles were not from Paris.
- In the ninth sentence, we use "weren't" because Socrates and Plato were not Indian philosophers.
- In the tenth sentence, we use "wasn't" because Che Guevara was not born in Italy.
- In the last sentence, we use "was" because Albert Einstein was a scientist.