A student at a Nevada middle school opened fire on campus, wounding two l2-year-old boys    and__________ a math teacher.

Listen! Do you hear someone __________for help?    

. All of the students were         by the         speech given by the headmaster.

Inspired by the seniors in college and      his own responsbilities，Dick is determined to work harder．

The flowers _______ sweet in the botanic garden attract the visitors to the beauty of nature.