I should not have laughed if I ______ you were serious.
In our daily life, everyone fails every now and then.It is how you react that makes a ______.
—It shouldn’t take long to clean up after the party if we all volunteer to help.—That’s right. ________.
The building the windows are bright at night is our school library.
It was not until dark _____ he found _____ he thought was the correct way to solve the problem.
_________ this is the biggest mistake we have made.