It is always（ ）in some ways, because if it were performed as a primitive ending-off or covering-up action, it would obviously be too transparent.
The technical-social way of life is a deep feature of the species adaptation, but we would err if we assumed a priori that man’s inheritance placed no constraint on his power to adapt.
DDT, the most powerful pesticide the world has ever known, exposed nature's vulnerability. Unlike mostApesticides, whose effectiveness is limited to destroy one or two types of insects, DDT is capable of killing hundreds of different kinds at once.BC D
The novel will be read a long lime for its minute and almost uncanny insight into army life, its（ ）dialogue, its sheer narrative pull, its portrayal of the tenderness that sometimes is found beneath the crudest animal drives, its absence of mock heroics, its comic absurdities and irony and, above, all else, its revelation of the perver¬sity of human nature in the face of evil.
When [A] putting [B] in historical perspective, from the time of Franklin Roosevelt’s New Deal to [C] the present, the [D] fallen status of government as a protector and benefactor is extraordinary.
After years of negotiation, an international agreement to conserve（ ）species and ecosystems has finally been changed.
