1¡¢——Can you imagine  what life will be like in           time?

——I think most families are richer and happier£®    £®    £®    ‘

A.20 years'£®    B£®20 year£¬s    C .20—Years’    D.20-years

2£®——Is the town very beautiful?

  ——Yes£®There are many tall buildings on

A£®either       B.neither       C.call       D.both