—What are they doing?
—They are________a sandcastle.
A．paint B．painting C．paints
( ) There _____ two cups of tea on the table.
A. isB. areC. was
( )Mrs. Sun is a friend of ______
A. Mary's motherB. mother of MaryC. Mary 's mother's
( ) —— I'm sorry I can't help you. —— ________.
A. Not at all. B. You are welcome.C. It doesn't matter.
( ) I want to buy ________.
A. something eat B. something to eat C. anything to eat
( ) —— I don't like milk. —— I don't, _________.
A. too B. neither C. either