It is said that potato chips ____________ by mistake about a hundred years ago.
| A．invent | B．invented | C．are invented | D．were invented |
Our teacher tells us ________ in the street.
| A．not play | B．not to play |
| C．to not play | D．don't play |
The radio is broken. I don’t know ________next .
| A．what to do | B．how to do |
| C．what to do it | D．why to do it |
People in Britain say “football” while people in the USA say ____.
| A．American football | B．soccer |
| C．rubber | D．eraser |
I can’t see any flowers there, I can see a hill.
| A．but | B．and | C．or | D．that |
There are some birds the tree. And there are some pears it, too.
| A．on; on | B．in; in |
| C．on; in | D．in; on |