4. Developing nations in various parts of the world have amassed $700 billion in debts; at stake, should a significant number of these debts be repudiated, is the solvency of some of the world’s largest multinational banks. (A) should a significant number of these debts be repudiated, is (B) should a significant number of these debts be repudiated, are (C) should they repudiate a significant number of these debts, are (D) if there is a repudiation of a significant number of these debts, would be (E) if a significant number of these debts will be repudiated, is
省略IF后,SHOULD 提前,但IS 为什么可以到装么?有这种形势么?
7. Many investors base their choice between bonds and stocks on comparing bond yields to the dividends available on common stocks. (A) between bonds and stocks on comparing bond yields to (B) among bonds and stocks on comparisons of bond yields to (C) between bonds and stocks on comparisons of bond yields with (D) among bonds and stocks on comparing bond yields and (E) between bonds and stocks on comparing bond yields with
E为什么不对
10. For many people, household labor remains demanding even if able to afford household appliances their grandparents would find a miracle. (A) even if able to afford household appliances their grandparents would find a miracle (B) despite being able to afford household appliances their grandparents would find a miracle (C) even if they can afford household appliances their grandparents would have found miraculous (D) although they could afford household appliances their grandparents would find miraculous (E) even if they are able to afford household appliances which would have been a miracle to their grandparents
C APPLIANCES 后省略了THAT,为什么不选E
11. In the most common procedure for harvesting forage crops such as alfalfa, as much as 20 percent of the leaf and small-stem material, which is the most nutritious of all the parts of the plant, shattered and fell to the ground. (A) which is the most nutritious of all the parts of the plant, shattered and fell (B) the most nutritious of all parts of the plant, shatter and fall (C) the parts of the plant which were most nutritious, will shatter and fall (D) the most nutritious parts of the plant, shatters and falls. (E) parts of the plant which are the most nutritious, have shattered and fallen
7. Here, investors are making choices between somethings. What they base is the result of the comparison, not the action of comparing. That is the difference between comparing and comparison.
10. I don't think that there should be a attributive sub-clause.