题目内容：

with a lot of problem ____,the president is very busy every day and hasn't had a good rest.solve ,为什么不是solving?

优质解答

根据题意可以当做目的状语理解,为了.所以用to solve;也可以根据固定短语answer to the question 类比.而且这里是个复合句要填非谓语动词,译为:待解决的问题,问题是被解决,即使要填也是用solved,而不是solving.