In our class, when the bell rang and the teacher closed his book, it was a ______ for everyone to stand up.
We all know that _______ speak louder than words.
Those T-shirts are usually $35 each, but today they have a _____ price of $19 in the Shopping Center.
The manager has _______ to improve the working condition in the company.
A computer does only what thinking people _________.
--- It was careless of you to have left your clothes outside all night. --- My god! _________.