He has never ________ of such a thing before.
—How are you going to be ?—I’m going to practice basketball every day.A. a basketball playerB. a teacherC. a pianist
Some scientists believe that there more robots in the future.A.will have B. will has C. will be
One day I_________ to Australia.A. went B. will go C. go
It will be difficult ________ a robot_________ same things as a person,A. of, to do B. for, to do C. for, doing
Their life will be__________ if there are ____________children in a family.A. richer; less B. poorer; fewer C. richer; fewer