The heating system has recently been____ to make it more efficient .

Directions:For this part, you are allowed 30 minutes to write a composition about What Would Happen If There Were No Power in three paragraphs. You are given the first sentence or part of the first sentence of each paragraph. Your part of the composition should be no less than 100 words, not including the words given. Remember to write clearly. You should write this composition on the Composition Sheet.1.Ever since early this century, electricity has become an essential part of our modern life.2.If there were no electric power.3.Therefore.

据报道，迄今为止，外国保险公司已打入中国19个城市。

本公司经营绿茶业务已有数百年历史。

健康取决于良好的食物。清新的空气和充足的睡眠。

必须采取措施解决这个城市的交通问题。

Not until the beginning of the twentieth century did the human beings learn to prevent the disease from spreading.

现在年轻人在书籍上花的钱越来越多了。

Advertising is an effective means of introducing a new product to the customers.

There is little chance of our coming to business because of the big difference between our prices.

The modern world is experiencing rapid development of science and technology.