He doesn’t like South Korea operas, does he — _______. He thinks it is a waste of time.

You’d better go over your test paper carefully, _______ you won’t get a good mark.

Who left the classroom ______the light _______— I’m sorry. I forgot it

When you finish reading this book, you will have_______ better understanding of_______ life.

he mid-term examination approaching, studentsshould ______ to stay energetic