Thisisanimportantproblem_______toofewsocialscientistshaveresearched.
翻译:Itisnousetellinggrown-upchildrennottomakemistakes,bothbecausetheywillnotbelieveyou,andbecausemistakesareanessentialpartofeducation.
中国自20世纪60年代开始进行海洋油气资源的自营勘探和开发。()
WhichoftenfollowingstatementsisnottrueaboutBritishcoalmining?
Towriteuphisnovel,Johnislookingforanenvironmentfree________outsidedistraction.