—My son is addicted to computer games. He is hopeless, isn't he?
—Yes, ________ he is determined to give up and start all over.
A．ifB．when
C．even ifD．unless
D
D 考察連詞用法。本句中的unless除非，如果…不…；符合上下文語境。句義：—我的兒子迷上了網(wǎng)絡(luò)游戲。他沒有希望了，是嗎？—是的。除非他決心放棄網(wǎng)絡(luò)游戲并且從頭再來。故D正確。
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