Up to Tuesday's attack, the worst school shooting in the U. S. was in March 1998 in Jonesboro,______two boys, aged 11 and 13, shot and killed a teacher and four girls.
Not only_______give us relaxation and pleasure,but also_____increase our knowledge.
Not until Jane got off the bus_______her wallet missing.
We all feel it is Jack as well as his wife that_______for their son’s bad performance at school.
______in health,he insisted on doing the experiment.
Smith was overweight,so the doctor urged that not only_______have less fat and meat,but also he_______.