You never imagine what trouble I have _________thispaper in my house.

The old woman’s ring went ______ on her way to the station.

__ with some research materials, he decided onthree possible approaches in his experiment.

The dictionary doesn’t belong to your brother ____ _____ , but it belongs to me

I’ll never forget the days___ I spent in the country with the farmers, ____, of course, has a great effect on my life