问题
选择题
Professor Lee failed many times but he ________found a good way to solve the problem.
A．gradually
B．entirely
C．finally
D．frequently
答案
答案：C
题目分析：此处gradually 渐渐地；entirely整个地；finally最终；frequently频繁地。句意：李教授失败了很多次但他最后找到了一个解决问题的好方法。根据句意选C。