问题
选择题
to forget is a good way to solve our problems and we can also deal with them by of something worse.
A．Learn; think
B．Learning; think
C．Learning; thinking
D．Learn; thinking
答案
答案：C
题目分析：句意：学会忘记是解决问题的好方法，我们也能通过考虑最坏的情况来处理它们。因为空格处缺少的是主语，所以不能用动词原形，故排除AD；by 后需跟动名词形式，即by+doing,故选C。