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.
My father gives me five hundred yuan a month which I think can____ all my expenses.
______the doors were closed and that all the lights were off, the boy left the classroom.
The earthquake in Haiti and the suffering ____ leads to have great influence on the people there.
Keeping a diary is ____ good habit. Stick to it, and you will make ____good progress in writing.
______ made his mother worried.