Such a problem is＿＿＿＿difficult for a primary school student ＿＿＿.
| A．so； to work | B．very too； to work out |
| C．rather too； to work out | D．quite too； to answer |
268. Yesterday one of my classmates sent me an invitation to take part in an English evening, but I _____ for the reason that I caught a bad cold.
| A．refused | B．accepted | C．received | D．Took |
267. After throwing the lamp against the wall and turning over the dining room table, she deeply ______ her temper.
| A．regretted losing | B．regretted being lost |
| C．regretted to lose | D．regretted to be lost |
266. At first he did not realize that he had succeeded in making a computer that ran on solar power(太阳能). “Realize” in the sentence means “___________”
| A．understand | B．get to | C．reach | D．come true |
265. Solids can usually be turned into liquids and liquids into gases if we _____ their temperatures high enough.
| A．rise | B．go up | C．increase | D．Raise |
264. The two brothers once quarreled _____ each other _____ the money when their father died, and now they have made up their quarrel.
| A．with; about | B．at; about | C．to; over | D．on; for |