依次填入下列各句横线处的成语，最恰当的一组是（）①作为工厂里的技术骨干，在工作中他总是冲锋在前，时时处处 ，亲力亲为。用实际行动践行了共产党员的职责。②不管美国如何 、挖空心思挑起中国同其他东南亚国家的地缘争端，这都改变不了南海是中国固有领土的事实。③面对社会的巨变，他 地寻求乡村文学的出路，力求变化创新，用文字抒发个体身处社会复杂元素中的焦虑感情。

How do you study ____the final test—I study ____ working with a group.

Jenny, do you think _____ money you have, _______ you’ll be.— No, I am afraid not. Happiness doesn’t always go with money.

Did you have a sound sleep last night-Yes, never sleep ______.

The patient was ___of losing his life and had to be operated on at once