单选题 ______ he tried to pass the driving test, he still failed the second time.
【正确答案】 B
【答案解析】这里是让步状语从句。只是连接词是as,而且一般是放在从句的第二个单词位子上,相当于 Though he tried hard,Hard though he tried,No matter how hard he tried,However hard he tried。