This is _____ best kind of _____ pen you can get here.
—Welcome to Haikou. —_________. A. Thank you very much B. Nice to see you C. Hello
This is ________ apple. It’s ________ green apple. A. a, an B. an, a C. an, an
—What are these? —__________. A. These are rulers B. It’s an egg C. They are cakes
Those are _________. A. five boxes B. an orange C. a car
—________ is he? —He’s Tony. A. Who B. How C. Where