Inventions

Result

There're lots of inventions that have changed our {#blank#}1{#/blank#}.

The first great invention is the wheel. It made it easier to carry

{#blank#}2{#/blank#} things.

Time

In1879, the light bulb was invented.

In {#blank#}3{#/blank#} ,the helicopter was invented.

Movies {#blank#}4{#/blank#} sound were invented in 1927.

In 1946, the computer was invented.

Connection

Now we can communicate with others by phone or {#blank#}5{#/blank#}

We can visit some places by car, bus, train, plane and so on.