2014
高考英语单项选择精英系列练习题(8)及答案单项选择 1. they decided to drive the cow away _____ it did more damage. a. before b. after c. until d. while 2. he _____ a hard life, but he _____ us a lot of excellent works. a. had led; had left b. led; has left c. had led; has left d. led; was leavi