She has been in doctors describe as a vegetative (植物的) state for six years.
They fell in love with each other _______ they met in Paris.
________ of experience made John fail in the interview,but it didn't mean that he couldn't find a suitable job.
Helen always helps her mother even though going to school ________ most of her day.
There are many wonderful theme parks in America, ________ Disneyland in California is my favorite.
The telephone system has ______. How can I contact him?