This is ________ apple. It’s ________ green apple. A. a, an B. an, a C. an, an
You can eat these two ______ kinds of food, and find the ______ between them.
Lily ______ goes to the movies. She thinks they are too boring.
I like junk food so much because ______ really delicious.
If you have a headache, you must take some ______.
---______ do you exercise? ---Once a week.