Students should pay attention to ________the teacher in class.

I got over from the failure of my entranceexamination. And I made up my mind to devote myself to my study again.

Don’t you think the weather is becoming hotter and hotter year by year—Yes. I think it’s one of __________ problems in the world these years.

errible accident is underinvestigation —Actually, quicker action ______ thoseworkers trapped in the mine

依次填入下列横线处的词，恰当的一项是（??? ）登上这气势恢宏的三峡大坝，触摸它伟岸的躯体，聆听它沉雷般的心跳，问苍茫大地，有哪一条江河????? 了如此深厚的文化？有哪一道大坝能???????? 如此众多的智慧？有哪一座建筑能???????? 如此壮美的崇高？有哪一项工程能???????? 如此伟大的传奇？