Some scientists think that it may take ______ years to make robots look like people, and do the same things as us.

_____ 2000 people took part in the game. [ ]

There’s only ten minutes to go. We can’t wait any more—- ______, we should start at once.

The charity walk begins _______ 9.00 a.m. Don’t be late.—No problem.[ ]

_________ seems no sense in complaining．We should take action now．