It is _____ unlucky day today. I’ve lost _____ useful pen.
Mike is only 15 years old. He is not ______ to get a driver’s license(驾照).
I don’t want to go to the museum, it’s too_______.
— Where did they go ________ vacation? —They went to Shanghai.
— Did your mother come back late yesterday?—No, she _______. She never _______ back late.
He decided _______ a letter to his uncle In New York City.