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.
________ I really don't like art, I find his work impressive.
________ he has limited technical knowledge, the old worker has a lot of experience.
The village has developed a lot ________ we learned farming two years ago.
—Where's that report? —I brought it to you ________ you were in Mr.Black's office yesterday.
Many of them turned a deaf ear to his advice,________ they knew it to be valuable.