Vocabulary complete each sentence using a word from the article. use the words in bold to help you. 1 we have to asteroids from entering the earth's atmosphere.
2 do we have
to find a way
to save the planet?
3 protecting the earth will
building more powerful telescopes.
4 technology is
for major
changes in the way we live our lives.
5 how do astronauts
for space travel?
6 is it
that we'll discover life
on other planets in the future?
7 nasa isn't
for a manned
mission to mars yet.

repkinvasya    1   22.01.2020 15:17    0