You should study harder______ it is too late to catch up.
Look! There are some children_______with a ball over there.
—This computer doesn't work. —Really?I'll have it _______tomorrow.
—Thank you for taking me around your school, Ruby. —_____________.
—What are you looking for? —I'm looking for something_________ I can use to cover the box.
When you request some help _____, it's________ to say "Could you tell me ... ?"