题目

根据句意及首字母或括号里的汉语或单词提示，把所缺单词写在横线上，并注意其变换形式。 46. It is reported that h_______ of houses fell down and many people died in the earthquake. 47. Nowadays, the education of _______ (安全) has caught the attention of the whole society. 48. You should get your parents’ _______ (agree) before you leave for London. 49. It is _______ (难以置信的) that AI has progressed in such a rapid way in the past few years. 50. All of us are looking forward to _______ (win) the volleyball match in Hong Kong. 51. U______13．工业革命后，社会生产力有了极大的提高，这从根本上说明（　　）A．机器效率高B．工人积极性得到提高C．科技是第一生产力D．机器应完全代替人力