1、There is no denying the fact that air pollution is an extremely serious problem, the city authorities should take strong measures to deal with it.

　　2、An investigation shows that female workers tend to have a favorable attitude toward retirement.

　參考譯文：

　　1、無(wú)可否認(rèn)，空氣污染是一個(gè)極其嚴(yán)重的問題，城市當(dāng)局應(yīng)該采取有力措施來(lái)解決它。

　　2、一項(xiàng)調(diào)查顯示婦女歡迎退休。