根据句意及首字母完成句子
1.I'mnotsurew_____thereareUFOs.
2.Doyouknowwhoi_____thefirstrobot?
3.Therainforestsarebecomingmuchs_____thanbefore.
4.Innature,therearealotofstrangeanimalsandp______.
5.Waterc_____mostpartsoftheearth.
6.Therainforestsareveryimportanttous.Theyarethel_____oftheearth.
7.Manypeoplelikegoingtothebeachforswimmingands______.
8.Inthisarea,thetemperatureisveryl______.
9.Weshouldp_____theforestsintheworld.
10.Animalsareourfriends.Theygiveusj_____.