单项选择题
A.doesn't; has B.didn't; did C.hasn't; has D.doesn't; does
A.day and night, right through the week B.two or three times a week C.at any time of the day, but not at night D.right through the day, two or three times a week
A.He thinks computer games might not always sell so well. B.He wants to stop working when he is a millionaire (百万富翁). C.One has to be young to write computer programs. D.He thinks his company might close down.