Ifyouarewalkingawayfromaclocktower,youwillhearthetickingoftheclockfadetoapoint________itcannotbeheard.
C
译文:如果你从钟塔旁走过.你将会听到滴答声,直到你走远。此题考查定语从句。 where 在定语从句中做地点状语,先行词是 a point。
Werefertothelimitedrangeofsoundsasthephonicmediumoflanguageandindividualsoundswithinthatrangeas______.
Thisisanimportantproblem_______toofewsocialscientistshaveresearched.
Youngerchildrenarecurious________howthingswork,andmanyofthemwanttotakeaparteverythingwithintheirreach.
Thesetwoalarmclocksarenormallysettogether,butnowtheyhavebeenresetafewhours_________.