I hope scientists _____(find)a cure for cancerBy the middle of this century ,more people _____(live)in cities than in the countryTen years from now, people ______(wear)smart clothesNo one_______ever_______(live)on MarsHumans ________(live)on an
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I hope scientists _____(find)a cure for cancerBy the middle of this century ,more people _____(live)in cities than in the countryTen years from now, people ______(wear)smart clothesNo one_______ever_______(live)on MarsHumans ________(live)on an
I hope scientists _____(find)a cure for cancer
By the middle of this century ,more people _____(live)in cities than in the country
Ten years from now, people ______(wear)smart clothes
No one_______ever_______(live)on Mars
Humans ________(live)on another plants five billion years from now
A chinese astronaut ______(reach)Mars by 2050
I hope scientists _____(find)a cure for cancerBy the middle of this century ,more people _____(live)in cities than in the countryTen years from now, people ______(wear)smart clothesNo one_______ever_______(live)on MarsHumans ________(live)on an
will find
have lived
will wear
has lived
have lived
would reached