You can’t imagine what difficulty we had ________ home in the snowstorm.

I told them not everybody could do it , _________? 

Each of the students, hoping to pass the exam, _____the book.

Children under sixteen are not permitted to participate in such kind of activities _____ bad for their mental development.

— What impresses you most about your hometown?— The street, the length of which is four times ______ it was eight years ago．