请教大全 948 950 951

948. A discussion of our nation’s foreign policy must begin with the fact of there being an independent Western Europe which now thinks of itself in trans-nationalist terms.
(A) A discussion of our nation’s foreign policy must begin with the fact of there being
(B) Beginning any discussion of our nation’s foreign policy must be the fact of there being
(C) Any discussion of our nation’s foreign policy must begin with the fact that there is
(D) Any discussion of our nation’s foreign policy must begin by acknowledging the existence of
(E) To begin discussing our nation’s foreign policy thee must be an acknowledgment of the fact that

这道题为什么是D也不是C

951. A substance from the licorice plant, 50 times sweeter than sucrose, was recently discovered, is not only a natural sweetener but also prevents tooth decay.
(A) A substance from the licorice plant, 50 times sweeter than sucrose, was recently discovered
(B) A substance, which was recently discovered, from the licorice plant, 50 times sweeter than sucrose,
(C) A substance from the licorice plant, which was recently discovered to be 50 times sweeter than sucrose,
(D) A substance from the licorice plant, 50 times sweeter than sucrose , which was recently discovered,
(E) A recently discovered substance, 50 times sweeter than sucrose from the licorice plant,

为什么是B而不是C

950. A private house in New York City is a building owned by an individual or individuals having less than eight units and no commercial space.
(A) a building owned by an individual or individuals having less than eight units and no commercial space
(B) one that an individual or individuals own with fewer than eight units and no commercial space
(C) a building with fewer than eight units, no commercial space, and is owned by an individual or individuals
(D) one that has fewer than eight units, no commercial space and it is owned by an individual or individuals
(E) one that has fewer than eight units, is owned by an individual or individuals, and has no commercial space
为什么是E而不是B

为什么没人回答 自己顶