The food in the fridge ________ bad. Throw it away, please.
Jeff pleased everybody by making his dog walk ________.
– Look! Here comes your mom’s car.-- It ______ be hers. She sold her car yesterday.
Last time, he offered to do my homework for me , but I ____________.
-- _________ do you like ping-pong ?-- Because it is relaxing.
—What’s your father?-- He is a doctor. He _________ in a local hospital.