That gentleman, yes, you, once again, ______?[ ]

It seemed to me that she was in doubt ____ Timmy lived or died.[ ]

My mother and father enjoyed _______ in the cinema last Sunday. The film brought them back to the happy college life.

As computers are more and more important nowadays,handwritten letters are gradually emails.

I failed again in the examination and only then_______how much time I had wasted.