【C14】A．sufferedB．troubledC．underD．tolerated

A．across B．fromC．underD．from underneath

【C15】A．overB．onC．underD．behind

__________ 查看材料A.confusedB.troubledC.concernedD.acq

【C2】A．atB．onC．underD．beyond

【C10】A．atB．overC．underD．on

【C20】A．atB．overC．underD．on