because of his poor health,it took himn a long time to __ his bad cough
a throw off b throw away c throw down d throw over
A throw off 抛弃,摆脱
Set up by a severe cold in October,Mary could not throw off her pneumonia.
玛丽十月间得过一场重感冒,抵抗力大为减弱,因而肺炎难以痊愈.
再问： 为什么其它不行? throw off 也有这个意思
再答： B. throw away 扔掉, 抛弃 (扔掉具体的东西，有形的） Don't throw away those rotten vegetables, we can feed them to the pigs. 不要把那些腐烂的蔬菜扔了，我们可能拿它来喂猪。 C. throw down 推翻, 扔掉 He was quick to take up the gauntlet thrown down by the opposition. 他立即接受了对方提出的挑战。 D throw over 背弃, 抛弃。拒绝接受, 拒绝 When he became rich he threw over all his old friends. 他发财之後把老朋友都抛弃了。
