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.