Bodylanguageisapowerfulcommunicationsystem,______itcansignalverydifferentthings.
Previewingisatechniqueofallowingyoureyestotravelrapidly______apage,stoppinghereandtheretoregisterthemainidea.
备课就是写教案。
YouandIlikeswimming.We__havethesame__.
TheEnglishlanguageteachingbusinesswillbecomethevictimofitsownsuccess,______maybeastonishingtoyou.