1. It mut be pointed out that it i one of our baic State policie to control population growth while raiing the quality of the population.
2. It i （ha been） etimated that the world population could reach 6 billion by the end of the century.
3. It mut be kept in mind that there i no ecret of ucce but hard work.
4. It can be een from thi that there i no difficulty in the world we can overcome.
5. A i known man i the product of labor.
6. It i a common aying that man who ha a ettled purpoe will urely ucceed.
7. It i clear that the enemy ha no deire for peace.
8. It i hard to imagine how Edion managed to work twenty hour each day.
9. It hard to ay whether the plan i practicable.
10. There i no doubt that other will help you if you have any difficultie.
11. It eem certain that they have made a erie of experiment.
12. It i aid that bat have been uing radar for million of year.
13. To tell the truth， many mitake we made could have been avoided.
14. A we know， it wa not until recently that the problem wa olved.
15. It mut be admitted that you havent done what you promied to do.
16. In my opinion， thi computer i different from that one you aw.
17. It i certain that we have a long way to go.
18. All thi how that nothing can prevent u from reaching our aim.[由wwW.HaoZuoWen.com整理]
19. A far a we know， it took him more than a year to write the book.
20. It ha been proved that every ubtance， no matter what it i， i made up of atom.
21. It ha been decided that we are going to build a railway whoe bae mut be completed within hi year.
22. It i obviou （evident） that the ucce of the innovation depend on our concerted effort.
23. To be frank， whether you like it or not， you have no other choice.
24. It i natural that one may have trouble expreing complicated idea in imple Englih.
25. What i more important， the agreement they have negotiated i being carried out.
26. We will be ucceful a long a we perevere.
27. Frankly peaking， what you call the truth may not apply to thing happening here.
28. It i true that we mut redouble our effort； otherwie we cannot catch up with the developed countrie.
29. I take it for granted that they will upport thi idea.
30. In a certain ene， a ucceful cientit i a peron who i never atified with what he ha achieved.
31. The ocean do not o much divide the world a unite it.
32. There i no denying the fact that the new management method ha greatly increaed the production.
33. There i no denying the fact that the new management method ha greatly increaed the production.
34. Upon hearing the unexpected new， he wa o urpried that he couldnt utter a word.
35. A the aying goe， nothing in the world i difficult for one who et hi mind to it.
36. Our goal mut be attained. Our goal can unquetionably be attained.
37. Noting can prevent u from realizing the four modernization.
38. Now in China， more and more familie can afford to buy high-grade good， uch a wahing machine， TV et， video order.
39. No matter how difficult Englih may be， you hould do your bet to learn it.
40. It can be aid that without knowledge of cience and technology， it i impoible to build ocialit modernization.