1、As is known man is the product of labour。
2、As we know, it was not until recently that the problem was solved。
3、In my opinion, this computer is different from that one you saw。
4、It can be seen from this that there is no difficulty in the world we can overcome.
5、It is a common saying that man who has a settled purpose will surely succeed。
6、It is clear that the enemy has no desire for peace。
7、It is estimated that the worlds population could reach 6 billion by the end of the century。
8、It is hard to imagine how Edison managed to work twenty hours each day。
9、It is said that bats have been using radar for millions of years。
10、It must be admitted that you havent done what you promised to do。
11、It must be kept in mind that there is no secret of success but hard work。
12、It must be pointed out that it is one of our basic State policies to control population growth while raising the quality of the population。
13、It seems certain that they have made a series of experiments。
14、Its hard to say whether the plan is practicable。
15、There is no doubt that you will be helped by others if you have any difficulties.
16、To tell the truth , many mistakes we made could have been avoided。
17、大学英语六级作文考前必背的句子
