It was____the old worker came that we____the experiment.
| A．until;didn’t begin | B．not until;began |
| C．until;began | D．not until;didn’tbegin |
— Are you cleaning my room, Lily?
— ______. I can’t bear seeing your room in a mess!
| A．I can’t help it | B．Not at all |
| C．You are clever | D．No chance |
The findings support another study which showed that being happy ______ reduce the risk of heart disease.
| A．need | B．shall | C．can | D．must |
If you want to get your ability ______, you have to show it in your work rather than complain all day.
| A．to recognize | B．recognizing |
| C．being recognized | D．recognized |
It is believed that high achievers are ambitious, hard working, and work toward personal standards of excellence ______ material rewards.
| A．other than | B．or rather |
| C．rather than | D．or else |
There is a common belief among the students in our school ______ they should try their best to learn and reach the peak of their academic performances.
| A．which | B．if | C．that | D．whether |