Last Thursday when I got to the airport, I ____I had left my ticket at home.
Don’t leave the baby at home _____. It’s very _____.
— Tom, you should be polite and let our grandpa get the car first. — OK. And I will open the door for him.
A has beautiful feathers . And it can sing nicely.
Peter, you should leave the light when you’re out.
I think it’s unusual thing to find a UFO.