【C4】A．bridgeB．ensureC．followD．show

The fire alarms are ringing. You must go to the ________. A.bridgeB.holdC.muster station

I ______ you that these goods will be delivered to you tomorrow morning.A．assureB．ensureC．

【C13】A．followingB．followedC．followD．to follow

【C6】A．encourageB．ensureC．enforceD．enable

7360OLT的组播SVLAN必须是（)模式。A.residential－bridgeB.mirrorC.cross－connectD.XCONN

He couldnt______his father that he was telling the truth.A．guaranteeB．ensureC．convinceD．pe