1. Before the invention of the eraser, people
to praning (erase) writing with water. erau
2. Before the invention of cars, people –
use
to
ideth y
_ (ride) horses in the city.smeet
3. Before the invention of the plane, people
not
travel
– (not / travel) by air. Plane
did not make
4. In the 1950s, people
(not / make) calls with a cell phone. comunicacion
not
have
5. We
(not / have)
computers before there was electricity
found.
Read. Complete the sentences. Check the true sentences.
1. Before the invention of the eraser, people erased writings with water.
2. Before the invention of cars, people ride horses in the city.
3. Before the invention of the plane, people did not travel by air.
4. In the 1950s, people
did not make calls with a cell phone.
5. We did not have computers before there was electricity found.