A positive attitude，________with willingness to seek appropriate help and exercising solid study habits，will do much to determine how well you do in your studies.

People felt ________impossible for man to fly into outer space some years ago.

About _________ films are on show d

Thanks to the immediate rescue, the two boys who had fallen into the river _____ climb onto the bank. [ ]

Mary,along with her parents ______Hainan for a weekand they will come back soon.