1、It'srainingoutside.

2、It'shottoday.

3、It'scoldinthewinter.

4、It'sdarkoutside.

5、It'xxrightinhere.

6、It'swindyatthebeach.

7、It'scalmonthelake.

8、It'snoisyonthestreet.

9、It'squietinthelibrary.

10、It'simportanttobekind.

11、It'snecessarytostudyhard.

12、It'sdifficulttolearnanewlanguage.

13、It'seasytomakemistakes.

14、It'sfuntotraveltonewplaces.

15、It'xxxcitingtotrynewthings.

16、It'sdangeroustoplaywithfire.

17、It'ssafetowearahelmetwhenridingabike.

18、It'shealthytoeatfruitsandvegetables.

19、It'sdelicioustoeaticecream.

20、It'xxxpensivetobuyanewcar.

21、It'scheaptotakeabus.

22、It'stimetogotobed.

23、It'searlyinthemorning.

24、It'slateatnight.

25、It'sabeautifulday.

26、It'sabusytimeofyear.

27、It'satoughdecisiontomake.

28、It'sagreatopportunity.

29、It'sawonderfulfeeling.

30、It'safunnyjoke.

31、It'saseriousmatter.

32、It'sacommonproblem.

33、It'sarareoccurrence.

34、It'salongwaytogo.

35、It'sashortwalktothestore.

36、It'sagoodideatosavemoney.

37、It'sabadhabittosmoke.

38、It'savaluablelessontolearn.

39、It'sawasteoftimetoprocrastinate.

40、It'sanecessaryevil.

41、It'sabreathtakingview.

42、It'samemorableexperience.

43、It'sachallengingtask.

44、It'sawell-knownfact.

45、It'sanewbeginning.

46、It'sahappyending.

47、It'sasadstory.

48、It'sascarymovie.

49、It'safascinatingbook.

50、It'saconfusingsituation.

51、It'safrustratingproblem.

52、It'sasurprisingdiscovery.

53、It'sadisappointingresult.

54、It'sasuccessfuloutcome.

55、It'sagreatachievement.

56、It'sachallengingopportunity.

57、It'sapositiveattitude.

58、It'sanegativeimpact.

59、It'saneutralopinion.

60、It'sasubjectiveexperience.

61、It'sapersonalpreference.

62、It'saprofessionalopinion.

63、It'saculturaldifference.

64、It'samoralobligation.

65、It'sapoliticalissue.

66、It'sasocialresponsibility.

67、It'sascientificfact.

68、It'saneducationalopportunity.

69、It'sanenvironmentalconcern.

70、It'satechnologicaladvancement.