—Grandpa has changed a lot．
—So he has．He spends more time than he used to________games with the children．
| A．play |
| B．playing |
| C．played |
| D．plays |
Some scientists believe that theremore robots in the future.
| A．will have | B．will has |
| C．will be | D．will do |
One day I_________ to Australia.
| A．went | B．will go | C．go | D．goes |
It will be difficult ________ a robot_________ the same things as a person,
| A．of, to do | B．for, to do |
| C．for, doing | D．to, do |
He always helps__________ the housework.
| A．with | B．for | C．in | D．to |
Robots can do manyjobs, because they will never get___________.
| A．boring. boring | B．bored, boring |
| C．boring, bored | D．bored, bored |