Complete the sentences with the words below. Write one word in each gap. space, galaxy, atmosphere, astronauts The Milky Way is estimated to contain over 100 billion stars. on the Apollo missions were the first humans to walk on the Moon. Perhaps, humans will travel in more often in 50 years. The is a mixture of gases that surrounds the Earth.

Задание

Complete the sentences with the words below.

Write one word in each gap.

space, galaxy, atmosphere, astronauts

The Milky Way [ ] is estimated to contain over 100 billion stars.

[ ] on the Apollo missions were the first humans to walk on the Moon.

Perhaps, humans will travel in [ ] more often in 50 years.

The [ ] is a mixture of gases that surrounds the Earth.