问题补充：
What a pity! He the only chance of success.
A. put down
B. threw away
C. gave in
D. broke off
答案：
A. put down
(答案→)B. threw away
C. gave in
D. broke off
解析：考查短语辨析。throwaway因愚蠢而失去，白白放过；放弃；丢掉； putdown放下,拒绝,镇压,记下；givein投降,屈服,让步,交上,宣布 ；breakoff中断,折断,突然停止,脱落,暂停,断绝,解除。句意：多么可惜啊！他白白浪费唯一成功的机会。故B正确。
