Some English scientists are identifying problems ____ technology in the 21st century. If solved, the solutions could change the world.
Susan wanted to be independent of her parents.She tried ________ alone, but she didn't like it and moved back home.
Tom sounds very much ________ in the job, but I'm not sure whether he can manage it.
Please remain ________;the winner of the prize will be announced soon.
It is believed that if a book is ________,it will surely ________ the reader.
Sara, hurry up.I'm afraid you won't have time to ________ before the party.