Enough sleep is good for health. If you for your favorite games, you will be exhausted the next day.A. stay up B. show up C. give up
Leo was late for class again.So he____ clean the classroom after school.
His wife advised him________ drinking, but he wouldn't.
That beautiful skirt is _____ cotton.
— Why _____ most stars _____ in the daytime? — Because the sun is too bright.
Students _____ be allowed to use mobile phones at school. --------I agree.Phones can bring troubles.