The writer and professor, whom I often refer to at the meetings, ____ famous for those works.

Reading in bed is bad your eyes.

Most disaster experts believe there is the potential ______ things could get a lot worse

12.–I ____ becoming an astronaut (宇航员) when I was at school. — Really? Do you still think it will ____ ?

It’s always difficult to be in a foreign country, _____ if you don’t speak the language [ ]