If there were life on Mars, such life forms __________ unable to survive on earth.
举一反三
- If there were life on Mars, such life forms __________ unable to survive on earth. A: would be B: are C: will be D: should
- Some scientists think there may have been life on the Mars in the past because () A: there is no life there now B: there is a large amount of water at the poles C: the Mars may be able to support life in the future D: conditions may have been similar to those on the Earth
- “Mary believes that there is life on Mars” implies “Mary knows that there is life on Mars”. ( )
- There ______ no life on the earth without air. A: will be B: is C: would be D: were
- Can we find life on Mars?