The final exam is a battle _______ everybody wants toshow off his or her talent

Did you go on vacation–No，I stayed at home.

.—Is this your book, Jane —_______. Thank you!

ing ________space is exciting, yet dangerous. There is ________need for both robots and humans for space exploration.

being shy is normal, it is when the shyness interferes with an individual’s daily communication with others ________ it becomes a disorder.