1. People predict that we _____ robots in their homes in 25-50 years.
A. have B. owned C. own D. will own
2. Everything _____ free in the future and we won’t use money then.
A. is B. was C. will D. will be
3. Probably humans on the earth _____ in 200 or 300 hundred years.
A. lived to be B. live to be C. will live to be D. lives to be
