【C14】A．secureB．assureC．confirmD．resolve

【C6】A．secureB．certainC．sureD．confident

You‘d better put these documents in a safe place.A.secureB.darkC.guardedD.banned

_____________ 查看材料A.ensureB.assureC.requireD.reques

【C15】A．ensureB．assureC．reassureD．guarantee

A．secureB．relationC．scriptD．strict

55._________A. tellB. denyC. confirmD. argue