Question

With a lot of difficult problems____________ , the manager felt worried all the time.

A. to settle                        B. settling     

C. settled                          D. being settled

Answer 1

A

解析:

不定式后的动词与所修饰的名词构成动宾关系，一般不用被动形式。而题干中这些问题还未解决，故用不定式表示。