Someconceptsmaybedifficulttograspchieflybecausetheymaybeunfamiliaror_____ideas,opinionswhichwealreadyhold.
B
暂无解析
Istillrememberthedays____westudiedtogether.
Nearbyweretwoboats____theyhadcometothelonelyisland.
"Lookwhatyou'vedone!You______morecareful."
Youcantakeanyseat____isfree.
Asisknowntousall,theage_____childrencangotoschoolisseven.