The students were singing an English song _______ Mr. Xiang came into the classroom.
Jim, dad asks you _____ down the TV. Mom is sleeping now.
—Must I return the book to you now, Jack? —No, you _____. You can give me back tomorrow.
He is poor _____ he is happy all the time.
—_____ does your mother go to work every morning? —At eight o’clock.
Mike is _____ than his friend Sam.