Unit 7词汇、语法
1. People ____ able to own robots in the future
A. are B. is C. will be D. were
2. Every ___ free in 50yeras.
A. is B. are C. was D. will be
3. Books ___ only on the computers in 200 hundred years.
A. will be B. are C. were D. is
4. There’s going to ___ a book show next week.
A. have B. be C. has D. had
