Skills 2

Choose the best option to complete the sentence.

Spacewalk is the service _______ clients can leave the International Space Station and float above the Earth.

1. on which
2. with which
3. about which
4. from which

Choose the best option to complete the sentence.

Space tourism is judged as costly, dangerous, ________ by critics.

1. sustain
2. sustainable
3. unsustainable
4. unsustainably

Choose the best option to complete the sentence.

$250,000 ________ the price of the deposit for a spaceflight on a Virgin Galatic spacecraft in 2018.

1. was
2. had been
3. has been
4. have been

Choose the correct form of the words in brackets to complete the following sentence.

By the time Yang Liwei (become) became || had become || was become the first person sent into space by the Chinese Space Program in 2003, NASA (send) had sent || sent || has sent over 100 people.

Choose the correct form of the words in brackets to complete the following sentence.

Dennis Tito (complete) had completed || completed || was completing 900 hours of training by the time he (fly) flew || was flying || had flown into space in 2001.

Choose the best option to complete the sentence.

The twenty-ninth of May is the day ________ our astronauts will be returning home.

1. that
2. which
3. X
4. and

Choose the correct form of the words in brackets to complete the following sentence.

The speech which (be made) ________ by U.S President Richard Nixon in 1972 (announce) ________ that NASA was developing a reusable launch vehicle – the space shuttle.

1. was made - had announced
2. had been made - had announced
3. be made - announced
4. was made - announced

Choose the best option to complete the sentence.

As soon as the spacecraft ________ into space, the crew started to observe the sun.

1. travels
2. was travelling
3. has travelled
4. had travelled

Choose the best option to complete the sentence.

Sooner or later a killer comet will again cross Earth’s path, threatening all life. Fortunately, _________ we have knowledge about comets and space science, we will be able to survive.

1. although
2. because
3. unless
4. due to

Fill the blanks with the words in the box.

How safe is space travel? Apart from the risk of crashing, space  tourists  have  some  special things to worry about. Earth’s  atmosphere protects us from dangerous  radiation from the sun. Space travelers are exposed to more of the sun’s rays. But for tourists spending only a few days or weeks in space, the radiation probably isn’t  harmful.