4. Science assures that highly evolved beings ____________ exist on the stars and planets around us, if life is common in the universe.
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- Though challenged by many people, Aczel firmly believes that ______. A: about 1 million planets in our galaxy are suitable for life B: it is very likely for life to exist on other planets C: life exists in approximately 150 billion stars in our galaxy D: there are a very large number of planets suitable for life
- What kind of planet elsewhere in the universe can support life A: Those double stars' planets. B: Those planets much hotter than our earth. C: Those planets similar to the earth. D: Those planets very close to their suns.
- The book will tell a great deal. It will tell us about the age of the universe.It will tell us about the size of the universe. A: The book tells us a great deal about the age and size of the universe. B: The book will tell us a great deal about the age of the universe and size of the universe. C: The book will tell us a great deal about the age and size of the universe. D: The book will tell us the age and size of the universe.
- There are many stars _________ the universe.
- Which of the followings can be called science fiction A: Human beings living together with dinosaurs. B: Description of universe. C: Clone. D: Story of God.