The rest of the apple _________.
| A．were throwing away | B．was throwing away |
| C．were thrown away | D．was thrown away |
In much of the animal world, night is the time ____ for sleep —pure and simple.
| A．set aside | B．set down | C．set off | D．set up |
Laura was away in Paris for over a week . When she got home，there was a pile of mail_____for her.
| A．waited | B．waiting | C．to wait | D．was waiting |
—What major will you choose when you are at university?
—______ but Physics, which has brought terrible dreams to me for the past 12 years.
| A．Nothing | B．Anything | C．Something | D．Everything |
It is said that the engines of Flight MH370____while flying over the Indian Ocean,with all on board killed .
| A．broke out | B．ran out | C．gave out | D．wore out |
—People often don't appreciate what they have, do they?
—No, _____ they lose it.
| A．if | B．after | C．when | D．until |