Mary ______ all the housework, she dropped herself into the sofa, sighing with relief.

It was a pity that the great scientist died      his research unfinished. 

LiPing stood silently with her arms ________.

With so many forms _______, many students feel at a loss before the 2010 college entrance exam.

 The movie Jurassic Park was a big hit, with its novel idea ___________ a mixture of fear and excitement into people’s hearts.