In the chicken house, there were four old chickens, waiting to be killed 28 Sunday’s dinner.
答案：(D) for
【句型】for + 目的，表示「為了……（用途）」，for Sunday's dinner表「作為星期天的晚餐」；in／on／at 都不能這樣表達目的用途。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
四個都是最基本的介系詞，中文都能翻成「在」，而 on Sunday（在星期天）是你背得最熟的組合，所以看到 Sunday’s dinner 很容易反射性地填 on。但空格後面不是 Sunday，是 Sunday’s dinner——一頓飯，不是一個日子。
四個選項都是介系詞，可見這一格考的是搭配與語意。先看空格後面接的是什麼：Sunday’s dinner（星期天的晚餐），是一件事物、一個用途。再看整句：four old chickens, waiting to be killed ___ Sunday’s dinner（四隻老母雞，等著被宰來……星期天的晚餐）。這些雞被宰的目的是要成為那頓晚餐，講的是用途，而表示用途、目的要用 for（for ＋ 名詞＝為了……、當作……）。順便把 for 在題庫裡考過的三種身分整理起來：本題是「為了……的用途」；90 年第 21 題是「對……而言」（For a student who is never on time, there is ...）；91 年第 24 題是連接詞「因為」，位置只能放在被解釋的那句話後面。同一個字三種考法，看後面接什麼、看它位於哪裡，就分得出來。
on：on Sunday 是「在星期天」，但空格後面是 Sunday’s dinner 這件事物，不是那個日子。in、at：兩個都用來標時間或地點，接不出「用來當作」這個意思。
for ＋ 名詞（為了、當作）、be killed for food（被宰來當食物）、wait to V（等著做……）、on Sunday（在星期天）、the chicken house（雞舍）、pick sth up（拿起某物）。
There was once a man in Puerto Rico who had a wonderful parrot. The parrot was 21, there was no other bird like him in the whole world. He could learn to say any word-- 22 one. He could not say the name of his native town, Catano.
The man 23 everything he could to teach the parrot to say "Catano," but he never 24. At first he was very gentle with the bird, but gradually he lost his 25. "You stupid bird! 26 can't you learn to say that one word? Say 'Catano' or I'll kill you!" But the parrot would not say it. Many times the man screamed, "Say 'Catano' or I'll kill you!" But the bird would not 27 the name. Finally the man gave up. He picked up the parrot and threw the bird into the chicken house.
In the chicken house, there were four old chickens, waiting to be killed 28 Sunday's dinner. "You are even more stupid than the chickens," the man said as he was leaving. The next morning, the man went out to the chicken house. When he opened the door, he was 29 by what he saw. He could not believe his eyes and ears! On the floor 30 three dead chickens. The parrot was screaming at the fourth, "Say 'Catano' or I'll kill you!"