________hard you try，it is difficult to lose weight without cutting down the amount you eat. (2012·湖南，32)
| A．However | B．Whatever |
| C．Whichever | D．Whenever |
In some parts of the world, tea __ with milk and sugar.
| A．is serving | B．is served | C．serves | D．served |
If you keep on, you’ll succeed___.
| A．in time | B．at one time | C．at the same time | D．on time |
Charles Babbage is generally considered __ the first computer.
| A．to have invented | B．inventing | C．to invent | D．having invented |
Tony is going camping with ___ boys.
| A．little two other | B．two little other | C．two other little | D．little other two |
--Don’t you believe me?---____.I’ll believe___ you say.
| A．No; whatever | B．Yes;no matter what | C．No; no matter what | D．Yes; whatever |