1.Darwin (stated that) individual with characteristics (best adapted )to existing (condition )survive and make up an (increasing )larger proportion of their species.
2.A laser is the only device (which)( aim )coherent light at an object( in a )safe and reliable (way).
3.(As the) US border (pushed ) further west, the Mid-west territories (developed) economically and industrially and big cities-(such as) Chicago, St. Louis and Cincinnati-appeared.
4.Syllogism is a form of reasoning------ conclusion is reached from two statements called premises.
(A)which a
(B)in which a
(C) that a
(D) to which
5. ----an ownership of nearly 60 to 62 percent of corporate equities, this mean 1- 2 percent of American society possesses about 43 percent of the total wealth of the nation.
(A) The range of
(B) Ranging
(C) Ranging from
(D) The range