单选题 The good news______us, for we had been very anxious.
【正确答案】 D
【答案解析】解析：relieve vt.减轻，解除(病痛或紧张气氛)；使松一口气；援救，救济(难民等)。free vt.使自由，解放。enlighten(on)vt.开导，启发。release vt．解放，释放；放开，松开。