根据句意填写单词或依据首字母填空
1.Friendshipisa___
2.Noteveryonehas__careinthecountry.Theycan'tbetreatedwellinhospital.
3.Scientistshavecarriedoutextensiver____intorenewableenergysources.
4.---Don'teattoomuchhotfoodoryouwillgetp___.
---Humanbeingswilldieout.
5.Teacher'ssmilemakesstudentfeelc___aboutansweringquestions
能答上来几个算几个.最好都能,呵呵