—This physics problem is too difficult. Can you show me _____, Wang Li?
—Sure.
A. what to work it out
B. what to work out it
C. how to work it out
—I lost my watch on my way to school this morning.
—You must be careful next time.
| A．What a pity! |
| B．Don’t worry. |
| C．That’s interesting. |
| D．Good luck! |
Xi’an is ancient county with long history.
| A．a; the | B．an; a | C．a; a | D．an; an |
I am not hungry because I have ____ had lunch.
| A．ever | B．never | C．still | D．already |
—you everto Beijing before?—No, never.
| A．Did; go | B．Have; been | C．Will; go | D．Do; go |
His talk was nothing but milk and water. “milk and water” here means________.
| A．毫无意义 | B．丰富多彩 |
| C．血浓于水 | D．例行公事 |