It is clear that the whole world is passing through a social revolution in which a central_____ must be taken by scientists and technologists.

Shanghai is the first city in the world ____a high-speed maglev train, from the city to Pudong Airport.

The postage rate was high in the past, because post offices had to send many people to_________ the postage.

A: Lets eat out, shall we? B: Im broke. Ive gone through my paycheck for the week already. A: Dont worry. [填空].

The message is clear: Just as tea and banana can’t go together, ______ should the son of a low class family expect to marry the daughter of a nobleman.

In order to prepare a lecture, one must do a lot of research and spend plenty of time____ his material so that his speech is clear and easy to follow.

This picture was taken at my high-school graduating ceremony on June 10th that year,_______ I still remember well as a great milestone in my life.

判断句子翻译是否正确Generally speaking, the languageused in public speaking is formal in style, clear and vivid in tone and persuasive in purpose.一般来说，公共演讲中所用的语言文体正式，惟妙惟肖，具有说服力。

在HIGH/SCOPE的课程中，兴趣区的创设与安排的核心原则是为了给儿童提供一个主动学习的环境，提供给孩子们不断选择与决定的机会

Goats are being hired to do the work of people near San Diego. The fires that occurred in Hillborbough four years ago destroyed thirty homes, most of which have been rebuilt. While people were rebuilding the homes, the grasses and bushes were growing back. The area is now so overgrown in bushes that there is again a major danger of fire.The city government put up bids to remove the bushes. The lowest bid they received was $50,000—and that was if the city provided breakfast and lunch for the workers for the six weeks it would take to clear the overgrown area. The city only wanted to give unlimited coffee and a piece of bread a day for each person. When that offer was rejected, the city asked for help on its website.A sheepherder in Montanta and a goat-keeper in San Bernardino read about the city’s plight（困境）while surfing the Web. They both offered to do the job for $25,000. The city government chose the goat-keeper because he lived closer. When he was told that the city dump（垃圾场）was overflowing , the goat-keeper said, “No problem. My goats will eat everything in your dump, except the car engines, of course.” So, for another $5,000, the city killed two birds with one stone. If all goes well, they will invite the goat-keeper and his “family” back every three years. The goat-keeper said that he would probably visit San Diego while his goats were in the dump.According to the passage, __________.