The guidelines are _______ in the second paragraph.

Our parents have done a lot for us. I think we should ______ them by working hard.

Liu Xiang trained hard before the Asian Games in Guangzhou, and it ______. He won the gold medal in 110 meters’ hurdles.

As the famous saying _______, two heads are better than one.

Jane likes collecting stamps very much. In fact, her interest in it ___back to her school days.

I don’t know how they ____the first couple of weeks after the strong earthquake.

The genetic engineering, ______ progress has been very rapid recently, is perhaps the most important of all the sciences．

Many towns and villages had their water supply ________ because there was no electricity.

I _____ while watching the movie 2012 last night. Unluckily, my roommate woke me up.

The mascot of Shanghai Expo is “Haibao”. It’s designed to ________ the Chinese character for “human”, which goes with the theme of the Expo.