it is the first choice of many young travelers, Europe is also seen as a wonderful tourist attraction by many old people.

With her long beautiful hair gone _______ would be no use for the combs

The singer felt very sorry and decided he would never drive again after drinking. The traffic accident was really a _________ to him.

I never forgot the meaning _____ the little empty box set on my desk.[ ]

The research lacks evidence, and therefore, its conclusions are doubtful.