That is ______ key.
She told me the sun _______ in the east.
I had ______ unusual experience on Sunday.
— Are you confident about the English Speech Contest, Sally? — __________. I’ve got everything ready!
— Can you guess _______ the new Nike sports shoes?—Yes, maybe he asked his grandpa for the money, I think.
— Judy, I guess you are only twenty-five years old, is that true? — Oh, it’s a ______.