As is often pointed out, knowledge is a two-edged weapon which can be used ________ for good or evil.
12.One of the best ways for people to keep fit is to ________ healthy eating habits.
11.Christmas is ________ special holiday when ________ whole family are supposed to get together.
Get up early, you will be late!
–Hi, Terry, can I use your computer for a while this afternoon? –Sorry. ______.
________ he loved acting, he refused to give up his dream of being in the movies