Don’t be lazy，_____ you will fail the exams.

______Jim ______his cousin has been to America，but of them know the country well.

Lily complains that she has never getsany mail.— ____. I will write her right away.

Catherine, I have cleaned the room for you .— Thanks. You_______. I could manage it myself.

Many teens don’t get enough sleep because they have too much homework, which _______ them up at night.