It is well known ___ a person eats causes changes in the body.
| A．what | B．that what | C．what that | D．that |
The old woman found herself ______ when she left the market.
| A．cheating | B．cheated |
| C．to be cheated | D．to have cheated |
Public service advertisements are often run _____ free, and are ______ to educate people about health, safety, or any other issue which affects public welfare.
| A．for, mean | B．for, meant | C．of, to mean | D．in, meaning |
--- Shall I tell John about it?
--- No, you _____. I’ve told him already.
| A．mustn’t | B．wouldn’t |
| C．shouldn’t | D．don’t have to |
I am in low spirits, because the money _______ I was going to buy Mum a present is gone.
| A．with which | B．from which |
| C．by which | D．through which |
We have to work hard; ______ we’ll lose the chance.
| A．therefore | B．otherwise | C．besides | D．however |