— Did the police ask the guard what happened?
— Yes, the guard told the police all _________ he knew.
A. which B. that C. what
Energetic people are hardly very tired, _____________ ?
| A．aren’t they | B．are they | C．do they | D．don’t they |
—_______ I take the newspaper away, please ?
—No, you mustn’t. You _______ only read it here.
| A．Must; can | B．May; can | C．need; must | D．Must; must |
It’s best to travel with someone who can translate things for you ________ you speak French yourself.
| A．if | B．until | C．unless | D．when |
I’d like to help homeless people, so I could ________ food at the food bank.
| A．put up | B．take away | C．set up | D．give out |
I agree ________ is good to eat lots of fruit and vegetables.
| A．that | B．it | C．this | D．its |