几道英语的完成句子题1.The rescuers -------- (担心)the safety of the men

1。The rescuers __were concerned about______ (担心)the safety of the men trapped in the fire。2。They __suffered_____(经历了)one hardship after another。3。It _happened to be_____ (碰巧是)a fine day when I arrive in Beijing。4。___To make greater progress__________(为了取得更大的进步) ,he studied harder。5。It will be the first time that he ___speaks in the public______(在公共场合发言)。