Complete these or .. fly /were invented in the 20th century be used as fuel for space rockets be called(an) aircraft 5)was/were discovered by the english 6)is/are in the souuthern hemisphere /are done by computers /are heavenly bodies imitate human voices

1) Both a bird and a ladybird can fly.
2) Neither a car nor photography was invented in the 20th century.
3) Either liquid or hard matter can be used as fuel for space rockets.
4) Both a plane and a helicopter can be called (an) aircraft
5) Neither America nor Alaska was discovered by the English.
6) Both Australia and New Zealand are in the Southern Hemisphere.
7) Neither singing nor dancing is done by computers.
8) Both stars and planets are heavenly bodies.
9) Neither a cow nor a pig can imitate human voices.