【C18】A．confirmedB．ensuredC．assumedD．concerned

We have ____ friendly relations with many countries in the world.A、confirmedB、establish

This letter is _____ our telephone conversation this morning.A、confirmedB、to confirmC、to

【C18】A．thatB．whichC．whatD．／

【C6】A．pretendedB．fakedC．assumedD．copied

【C20】A．allowedB．ensuredC．drivenD．committed

Pauline failed to catch the flight because______.A．her ticket was not confirmedB．she booke