I won’t call you, ______ something unexpected haappens.

—Most people said the film Let The Bullets Fly was wonderful _____ they watched it.—I agree with them, and I like it very much!

We didn’t know the good news ______ he told us.

The box was too heavy for me to carry, ＿＿＿I pulled it into my room.

—I’m afraid that I can’t do it.—Oh, you should believe in yourself. You won’t know what you can do______ you try it.