So, when gold was discovered in the West in 1849, he 23 thousands of others and rushed to California. 24 he planned to open a shop in San Francisco, he took many goods with him, 25 a large quantity of canvas.
答案：(A) including
現在分詞 including 表示「其中包括」，補充說明帶的貨物內容；included（過去分詞）、being included／was included（被動結構）都不符合這裡主動補充說明的語法位置。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
四個選項是 include 的四種形態排在一起，你會開始判斷主動被動、找意義主詞。這一格確實是文法題，但判斷方式比想像中簡單——看位置就好。
先看空格所在的地方：he took many goods with him, ___ a large quantity of canvas（他隨身帶了很多貨物，……大量的帆布）。空格後面接的是名詞 a large quantity of canvas，而整串是用來補充說明前面 many goods 裡包含了什麼。這裡有一條很好用的位置規則：including 與 included 意思相同，但位置正好相反——including 放在名詞的前面（including a large quantity of canvas），included 放在名詞的後面（a large quantity of canvas included）。劍橋詞典 included 的詞條例句正好示範了後者：The fee covers everything, babysitter included.（費用包含所有項目，保母費也在內。）本題空格在名詞前面，所以填 including。
included：意思對，但位置錯了——要用它得寫成 a large quantity of canvas included，把它擺到名詞後面。being included、was included：兩個都是被動。was included 還是限定動詞，而句子已經有主要動詞 took，再放一個限定動詞而中間只用逗號，會變成兩個句子黏在一起。
including + 名詞（包括……，放名詞前）、名詞 + included（……也包含在內，放名詞後）、be included in（被包含在……之中）、a large quantity of（大量的）、canvas（帆布）、wagon covers（篷車車篷）。
When Levi Strauss arrived in the United States from Bavaria, he was only seventeen, poor, and knew very 21 English. Like most immigrants, he was 22 a better life. So, when gold was discovered in the West in 1849, he 23 thousands of others and rushed to California.
24 he planned to open a shop in San Francisco, he took many goods with him, 25 a large quantity of canvas. He hoped to sell 26 as material for tents or wagon covers. Business, however, was not 27 he had expected.
28 , as he sat in a cafe in a small town, he had an idea. He saw a man with a hole in the leg of his trousers and 29 realized what Californians 30 for the rough work they were doing—good, strong trousers!