Choose the best answer to fill in each blank

Exercise 7: Choose the best answer to fill in each blank
Life in the future will be far (66)
than it is today. People will be (67)
to live
will be able
in a cleaner environment, breathe fresher air and eat healthier food. (678
to do most of the work in factories and they will be able to do all the dangerous things for us.
More people will be able to work from home on computer (69)
there won't be any
traffic jams. Cars will be with us but they will be able to run on solar energy instead of petrol.
Robots will be able to interact with people. They will be able to (70)
almost
everything for us at home.
66.A. good
67.A. can
68.A. People
69.A. so
70.A. do
B. better
B. are
B. We
B. but
B. to do
C. best
C. must
C. Robots
C. although
C. does
D. worst
D. able
D. They
D. because
D. doing