He displayed two jars in front of the group, one containing water and the other containing alcohol, 16 a very healthy worm.
答案：(B) along with
along with（連同）表示「和一條健康的蟲一起展示」，along with a very healthy worm 補充說明展示品還包括一條蟲。in addition 通常需搭配 to 或單獨作副詞使用、on account of（因為）、as a result of（由於）都不符合這裡「一併展示」的語意。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
in addition 的中文是「此外」，把它擺進空格讀成「此外還有一條很健康的蟲」，意思好像完全通順，於是就直接選了它。落差在於：in addition 後面接的是一整句話（He displayed two jars. In addition, he showed a worm.），它自己接不住名詞；要讓它後面直接放名詞，非得補上 to 不可——劍橋詞典收為介系詞的是 in addition to，例句是 In addition to doing an exam, applicants also had to do an interview.（除了考試之外，申請人還得面試。）
先看空格後面接的是什麼：a very healthy worm 是一個名詞組，前面沒有動詞、也沒有連接詞帶出新的句子，可見這一格要的是能直接接名詞的東西。四個選項有三個做得到（along with、on account of、as a result of 後面都接名詞），只有 in addition 少了 to，形態本身就不完整。片語題先檢查冠詞與介系詞有沒有缺，缺零件的往往一眼就刷得掉，這一招很值得練熟。剩下三個再用語意分：這一整句從頭到尾都在列「他擺出了什麼」——兩個罐子，一個裝水、一個裝酒精，再加上一條蟲，是一份展示品的清單，不是因果關係。along with 的意思正是「連同、和……一起」，接得上這份清單。
on account of（因為）與 as a result of（由於……的結果）雖然都能直接接名詞，但兩個講的都是原因，而那條蟲不是他擺出兩個罐子的理由。in addition 若要成立，句子得改寫成 ..., and in addition, he showed a very healthy worm.，先有對等連接詞與主詞動詞才行。這三個選項有一個共同的破綻：沒有一個能把那條蟲掛進「展示品清單」裡。
along with（連同、和……一起）、in addition to ＋ 名詞或動名詞（除了……之外還有）、on account of（因為，後面接名詞）、as a result of（由於……的結果）、display（展示、陳列）、one ... the other ...（兩者之中一個……另一個……，國中學過的 I have two pens. One is red; the other is blue. 就是這個）
A man wanted to prove to a group of alcoholics the effect of alcohol on human body systems. He displayed two jars in front of the group, one containing water and the other containing alcohol, 16 a very healthy worm. He said to the audience: "This jar contains water." Then he dropped the worm in the jar and said, "Please watch the reaction." The group watched closely 17 the worm floated in the jar, dangling and swimming.
The man then took the worm out of the first jar and put it in the second jar 18 contained alcohol and said to the audience, "Now watch the reaction." The group saw the worm go down into the water and soon begin to struggle for 19. Right there and then every one in the group witnessed the worm shrinking and disintegrating. Then it died.
The man turned round and asked the audience, "What would you all say to this?" After a long silence, someone from the rear 20 and said, "I can see that if I drink alcohol, there will be no more worms in my body."