Many scientists believe that robots will be able to ________ like humans in 50 years.
A.ask B.say C.talk D.tell
Don't forget to ________ "Thank you" when someone helps you.
A.say B.talk C.speak D.tell
go swimming, do, how often, you
_______________________________________________？
how long, Hebei, you, been, have, in
_______________________________________________?
again, make, never, such, mistake, a
________________________________________________________________________.
often, I, bed, before, go, ten, to
_______________________________________________.
