1. It must be pointed out that it is one of our basic State policies to control pulation growth while raising the quality of the population. .`p<hA)%[C
2. It is (has been) estimated that the world's population could reach 6 billion by the end of the century. r21?c|IP
3. It must be kept in mind that there is no secret of success but hard work. %S
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4. It can be seen from this that there is no difficulty in the world we can overcome. E !Oz|q
5. As is known man is the product of labour. i_[
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6. It is a common saying that man who has a settled purpose will surely succeed. d5w_[=9U
7. It is clear that the enemy has no desire for peace. Y91
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8. It is hard to imagine how Edison managed to work twenty hours each day. L;.VEz!
9. It's hard to say whether the plan is practicable. SQdzEF
10. There is no doubt that you will be helped by others if you have any difficulties. IKMs
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11. It seems certain that they have made a series of experiments. dT0^-XSY
12. It is said that bats have been using radar for millions of years. 3i]"#wK
13. To tell the truth , many mistakes we made could have been avoided. 2cs?("8e%
14. As we know, it was not until recently that the problem was solved. AI^AK0.L
15. It must be admitted that you haven't done what you promised to do. =Q
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16. In my opinion, this computer is different from that one you saw. _%A/ )
17. It is certain that we have a long way to go. tIi!*u
18. All this shows that nothing can prevent us from reaching our aims. O tXw/
19. As far as we know, it took him more than a year to write the book. ^Ei*M0fF
20. It has been proved that every substance, no matter what it is, is made up of atoms. kdK*MUB
21. It has been decided that we are going to build a railway whose base must be completed within this year. (,- 5(fW
22. It is obvious (evident) that the success of the innovation depends on our concerted efforts. XsAY4WTS
23. To be frank, whether you like it or not, you have no other choice. Ux_EpC
24. It is natural that one may have trouble expressing complicated ideas in simple English. vbr~<
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25. What is more important, the agreement they have negotiated is being carried out. .K $p`WQ{
26. We will be successful as long as we persevere. +O|_P`HBoI
27. Frankly speaking, what you call the truth may not apply to things happening here. L/qZ ; {
28. It is true that we must redouble our efforts; otherwise we cannot catch up with the developed countries. $?H]S]#|}.
29. I take it for granted that they will support this idea. I regard it as natural that they will agree to this idea. [WcS[](ob
30. In a certain sense, a successful scientist is a person who is never satisfied with what he has achieved. Nhjle@J<
31. The oceans do not so much divide the world as unite it. <