It may be another fifteen years before spacecraft from Earth again venture to Mars, a planet now known to be cold, dry, and probably lifeless.
A. Same as in sentence
B. venture to Mars again, a planet now known for being
C. will venture to Mars again, a planet now known as being
D. venture again to Mars, a planet that is known now to be
E. will again venture to Mars, a planet known now as being
A. Same as in sentence
B. venture to Mars again, a planet now known for being
C. will venture to Mars again, a planet now known as being
D. venture again to Mars, a planet that is known now to be
E. will again venture to Mars, a planet known now as being












