_______ alarm clock is on the desk. It’s _______ red alarm clock.An, an B. A, a C. An, a D. A, an
Please call Mr. Wu _____238-8977 and ask himhelp.
This is ____ English book and that is ____Chinese book.
Thanks ____ the photo ____ your family
—What are those? —are their books.
—Is this _____ schoolbag? —No. It's _____.