根据句意,用括号内所给单词的适当形式填空。
小题1:With the ___ (develop) of modern medicine, most eye problems can be treated and cured .
小题2:They want to borrow my car, for ________ (they) won’t start.
小题3:All the players did their best to finish the training ________ (success).
小题4:My friend Kate went to live abroad in her ___________(twenty).
小题5:We all know ______________ (pollute) water does harm to our health.