HOW LONG WILL THE HELPER TEAM NEED TO FIND AN EARTH-LIKE PLANET
31. How long will the Helper team need to find an Earth-like planet?
a. three years b. about three years
c. more than three years b. less than three years
31. How long will the Helper team need to find an Earth-like planet?
a. three years b. about three years
c. more than three years b. less than three years