A.in 28 years | B.by 2020 |
C.by 2053 | D.in 38 years |
A.modern ideas | B.other choices |
C.wise methods | D.natural means |
A.the Spring Festival travel may still be a problem |
B.90percent of the population will live in the city |
C.robot teachers will check homework on computers |
D.readers can discuss with each other through Internet |
A.future changes in many ways | B.computers will be important |
C.new things will be | D.old things will be gone |