53.Itisamazingthatthelittlegirlcanswimacrosstherivermea...
問題詳情：53.Itisamazingthatthelittlegirlcanswimacrosstherivermeasures50meterswide.54.Tom,togetherwithhisparents,gototheparkeverySunday.55.Thebookyoureferredjustnowisnotinthelibrary.Someonemayhaveborrow...