【B19】A．variedB．debatableC．necessaryD．contradictor

【B19】A．for allB．above allC．at allD．after all

【B19】A．advisedB．saidC．askedD．wished

Air is composed of ______ gas including hydrogen, oxygen and carbon dioxide.A．variedB．vari

【B19】______A．spotB．schemeC．deadlineD．era

【C6】A．prospectB．wayC．reasonD．necessity

共用题干第一篇Is the Tie a Necessity?Tie