Thepolicemancameuptothelonelyhousewiththedoor_______,_______thereforawhileandthenenteredit.
WhichofthefolloingisNOTincludedinthefabledFiveMountainsinChina?
WhichofthefollowingcountryisnotamemberofOECD?
Chinaisamountainouscountry.Hills,mountains,andplateauscover_______ofthetotalarea.
Hefound_______difficulttostudymaths.
