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Julie really wanted to travel into space at the age of six.

People are encouraged to choose public transport because of the heavy traffic.

It's hard to improve people's life without the development of technology.

It's necessary to remind them of the hot weather.

Are you sure about the high quality of the spacecraft?

They have found the possibility for people to live on Mars.

Do you know the man with books in his hands?

landed

successfully

travelling

our