Therefore we think of architecture as some vague, learned thing having to do with French cathedrals or Italian palaces or Greek temples, 19 with New York or Chicago streets or Los Angeles suburbs.
答案：(A) not
本句以 having to do with X, not with Y 的結構表達對比：我們誤以為建築只和歐洲古蹟有關，而非和紐約、芝加哥街道有關，故填入 not 以形成「與 X 有關、而非與 Y 有關」的對比句構；but／often／then 皆不符合此處的對比邏輯。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
逗號後面接一個字再接 with，很容易讀成「而且也跟紐約街頭有關」，於是往 but 那種轉折的方向想。
照第 18 題那三步走。第一步找對等連接詞：這裡沒有 and，但逗號加上空格那個字站的就是連接的位置。第二步看它連的是哪兩樣：前面是 with French cathedrals or Italian palaces or Greek temples（三個 or 並列的名詞，全是遠方的古典建築），後面是 with New York or Chicago streets or Los Angeles suburbs（三個 or 並列的名詞，全是眼前的美國城市）。兩邊結構完全對稱，都是「with ＋ 三個並列的地名」，這種對稱本身就是最強的線索。第三步從兩邊的內容反推：整段正在說我們誤以為建築是某種模糊高深的東西，所以這一格要把身邊那一組排除掉——A, not B（是 A，不是 B）。
but 雖然也表對比，但它連接的後半仍然是成立的（不是被否定的）；這裡要說的是「我們沒把紐約街頭算進去」，是排除不是轉折。often（經常）與 then（然後）都是副詞，接不起兩個 with 片語，放進去整句會斷掉。
A, not B（是 A，不是 B）、have to do with（與……有關）、cathedral（大教堂）、palace（宮殿）、suburb（郊區）、vague（模糊不清的）
Architecture is an art. Any art must give us pleasure; if it doesn't, either it is bad art or we are abnormally blind. We are in general insensitive to architecture 16 an art and to the joy it may bring to us. It is the constant nearness of architecture during our life that has 17 us in this way.
We forget that it is an art of here and now; because it is with us every day and 18 we must have houses to live in, we are apt to think of them solely as dwelling places. Therefore we think of architecture as some vague, learned thing having to do with French cathedrals or Italian palaces or Greek temples, 19 with New York or Chicago streets or Los Angeles suburbs.
This false belief has strengthened in us until our eyes are 20 and our minds are deadened to all the beauty that is being created around us today. Eventually we lose all the fine deep pleasure that we might otherwise experience from our ordinary surroundings.