The majority of the deaths resulted from people 20 trampled underfoot or crushed against barriers in the stadium.
答案：(C) being
【句型】result from + Ving（動名詞片語），people being trampled 是「result from」的受詞，being trampled 是動名詞的被動式，表示「人們被踩踏」這個被動動作。be（原形）、been（過去分詞，不能單獨作動名詞）、to be（不定詞不合 from 之後需接動名詞的語法）都不符合。
四個選項都是 be 動詞的形態，你會先想「這裡需要一個動詞嗎」，然後被 people 這個看起來像主詞的字帶著走，去找一個有時態的動詞。
先看空格前面是什麼：resulted from people ______ trampled underfoot。from 是介系詞，介系詞後面只能接名詞或動名詞，不能接一個有時態的子句，所以 be 與 to be 先出局。這裡的 people 不是主詞，而是 from 的受詞，同時也是後面那個動作意義上的主人——人是「被踩踏」的，不是自己去踩，所以要用被動；動名詞的被動形是 being ＋ 過去分詞，填進去讀成 resulted from people being trampled underfoot（起因於人被踩在腳下）。been 不能單獨用，它前面一定要有 have 或 has 之類的助動詞。
be 與 to be 都接不上介系詞 from；been 是過去分詞，單獨擺在這裡沒有助動詞可以搭。四個都是同一個動詞的形態，形態吻合，容易被順手選走，關鍵是先認出前面那個 from 是介系詞。
result from（起因於、由……造成）、result in（導致、造成）、介系詞 ＋ 受詞 ＋ being ＋ 過去分詞（動名詞的被動）、the majority of（大多數的）、trample underfoot（踩在腳下）、be crushed against（被擠壓在……上）。
In 1985, a riot at a Brussels soccer match occurred, in which many fans lost their lives. The 16 began 45 minutes before the start of the European Cup final. The British team was scheduled to 17 the Italian team in the game.
Noisy British fans, after setting off some rockets and fireworks to cheer for 18 team, broke through a thin wire fence and started to attack the Italian fans. The Italians, in panic, 19 the main exit in their section when a six-foot concrete wall collapsed. By the end of the night, 38 soccer fans had died and 437 were injured. The majority of the deaths resulted from people 20 trampled underfoot or crushed against barriers in the stadium.
As a result of this 1985 soccer incident, security measures have since been tightened at major sports competitions to prevent similar events from happening.