1.Senior executives had a larger percentage increase in pay in 1990 than the wages of other salaried workers.
　　(A) Senior executives had a larger percentage increase in pay in 1990 than
　　(B) The percentage of senior executives’ pay increase in 1990 was larger than for
　　(C) The 1990 increase in pay for senior executives was larger in terms of percentage than
　　(D) In 1990 senior executives had a larger pay increase in terms of percentage than did
　　(E) The pay of senior executives increased in 1990 by a larger percentage than did
　　the key:E。
　　比較考點(diǎn)：比較對(duì)象，the pay of senior executives——the wages of other salaried workers;do的用法
　　2.Several studies have found that the coronary patients who exercise most actively have half or less than half the chance of dying of a heart attack as those who are sedentary.
　　(A) have half or less than half the chance of dying of a heart attack as those who are sedentary
　　(B) have half the chance, or less, of dying of a heart attack than those who are sedentary do
　　(C) have half the chance that they will die of a heart attack, or less, than those who are sedentary do
　　(D) are at least fifty percent less likely to die of a heart attack as those who are sedentary
　　(E) are at least fifty percent less likely than those who are sedentary to die of a heart attack
　　the key:E
　　比較考點(diǎn)：less----than----to do
　　3.Since the movie was released seventeen UFOs have been sighted in the state, which is more than had been sighted in the past ten years together.
　　(A) which is more than had been sighted
　　(B) more than had been sighted
　　(C) more than they had sighted
　　(D) more than had reported sightings
　　(E) which is more than had reported sightings
　　the key:B
　　比較考點(diǎn):省略主語(yǔ)