小题1:____________ (提醒) me to post the children’s letters please.

小题2:The Sydney Opera House is only an usual theatre but also the __________ (标志) of Australia.

小题3:Mum made a ____________ (允诺) to buy a mobile phone for me as a birthday present.

小题4:Now there’s fewer traffic accidents because of the law ____________ (反对) driving after drinking.

小题5:We are ____________ (真的) proud of our woman astronaut, Wang Yaping.

看过许多名人访谈，他们无不谈到过去某段时期的迷茫与困惑、低潮与失败。彼时，如果他们向命运低头，他们就是失败者。只有冷静下来，摆正心态，才有______、赢取辉煌的可能。可见，平日的积累与锻炼固然重要，但关键时刻的______与爆发力却能成就一个真正的王者。
依次填入画横线部分最恰当的一项是( )。

A．背水一战 表现

B．反败为胜 勇气

C．逆水行舟 速度

D．反戈一击 突破