Should, shouldn't ought or oughtn't
Nick: I can't come out, Rachel. I ____1_____ to do some more homework.
Rachel: You ____2_____ worry so much. You _____3___ to relax sometimes. You ___4____ take a break.
Nick: I know I _____5___ worry, but I do. I can't help it.
Rachel: Anyway, you're doing OK, aren't you? Your results are not bad now. You _____6_____ be please. You _____7____ to invent problems for yourself.