—Where were you doing when I called at your house this morning?—Oh,I______ for a friend from New York at the airport.
Sally and Simon ________ fishing together next weekend.
—Is Mike at home? —No. He _______ with his brother.
Tom is a good boy and he writes _________ in his class.
—Which colour do you like _______, blue or green? —Blue.
—______ you help me mend the radio? —Yes, I can.