________ difficult it might be, I will try my best to work it out.
| A．Whatever | B．How | C．However | D．What |
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 |