问题补充：
缺词填空
Why does the Leaning Tower of Pisa in Italy lean? It leans because of a mistake. It has leaned almost since the day the builders b 1it.
In 1774, the people of Pisa in Italy wanted to build a bell tower. They wanted the tower to be the m 2beautiful bell tower in Italy. The city needed a bell tower because the church(教堂) did not have o 3 . As soon as the first floor of the building was finished, the tower started to lean. Builders t 4to make the building straight again as they added more floors, but the leaning tower got w 5as the tower grew. It took about 180 years to finish the tower. Today, the leaning tower has eight f 6It is 54.5 meters t 7 . And it leans almost 4 meters to one s 8. The tower is also sinking(下沉) into the g 9on which it was built. Every year, the tower leans a 101.7 cm.
答案：
解析：
【小题1】考查动词。since后跟含过去时的句子。build建造，过去式是built。故填built。
【小题2】考查最高级。意大利最漂亮的钟塔。根据句意可知，用最高级。Beautiful是多音节形容词，最高级在前面加most。故填most。
【小题3】考查指示代词。泛指同类中的一个，用one。故填one。
【小题4】考查固定用法。try to do sth.“尽力做某事”。故填tried。
【小题5】考查比较级。工人们又建了几层，来纠正斜塔，但这样做使情况更糟了。故填worse。
【小题6】考查名词。floor“楼层”，是可数名词。故填floors。
【小题7】考查固定用法。数字+量词+tall/long/wide等，意为“高/长/宽多少”。故填tall。
【小题8】考查名词。side“一边”。斜塔向一边倾斜四米。故填side。
【小题9】斜塔同时还在往地面以下下沉。ground“地平面”。故填ground。
【小题10】每年，斜塔都会倾斜1.7厘米。Another+数词=数词+more，意为在原来基础上增加多少。故填another。
