The news came as no surprise to me . I ____ for some time that the factory was going to shut down .

Mrs. Black would rather his husband did some housework when he’s free, but he _______.

I know a little bit about Italy as my parents and I  there several years ago.

Excuse me.I ________ I was blocking your way.

Although the causes of cancer_____, we do not yet have any practical way to prevent it.