The problem had become _____ in his mind, and he could not decide what to do about it.
The problem of the global warming is serious, ________,the sea levels have risen a little.
Letters to the editor must carry the writer’s full name, which indicates that writers are _____for what they say.
It was shameful to be found sleeping in class. His classmates’ laughter only_____ his embarrassment.
She was not beautiful, she didn’t _______her mother, who was a beauty.
He suddenly saw Sue across his room ,so he ______his way through the crowd to get to her.