The detectives had no problems in solving the crimes as it was clearly an open and ..... case.

The detectives had no problems in solving the crimes as it was clearly an open and ..... case. (*) closed (*) closing (*) shut (*) shutting


This is a companion discussion topic for the original entry at https://english.best/questions/3506,the-detectives-had-no-problems-in-solving-the-crimes-as-it-was-clearly-an-open-and-___-case/