It is difficult for any of us to eat better, exercise more, and sleep enough,________ we know we should.
| A．because | B．even if | C．unless | D．before |
For many seniors in some universities, the final year can be an unpleasant experience, _______ that ends the campus romance.
| A．which | B．the one | C．what | D．one |
Companies in Zhongguancun all have their own characteristics, but they all share ______ spirit of creativity and scientific skill that have made Zhongguancun________-success.
| A．the; the | B． the; a | C．/ ; a | D．/; / |
---------Did you have a good time in Thailand last week?
---------___________-.It was too hot.
| A．Not really | B．Yeah, why not | C．Oh, great | D．You’re right |
--Thank God you’re safe!
--- I stepped back, just _______ to avoid the racing car.
| A．in time | B．in case | C．in need | D．in vain |
Not until I came home last night ________ to bed.
| A．Mum did go | B．did Mum go | C．went Mum | D．Mum went |