As a result, students are forced to communicate clearly 13 that the “patient” understands them completely.
答案：(A) in order
【句型】in order that + 子句，固定搭配，表示「以便、為了使……」，in order that the patient understands 符合「學生必須清楚溝通，以便讓病人完全理解」的目的語意。in return（作為回報）、in case（以防萬一）、in addition（此外）都不符合這種「目的」語意。
四個選項都是 in 開頭的片語，長得很像，容易混淆，你會憑哪個中文順挑一個。
鑑別度高達 55，分開的是有沒有注意到空格後面那個 that。空格後是 that the “patient” understands them completely，一個完整的 that 子句；四個選項裡只有 in order 能直接接 that 子句組成 in order that（以便、為了使……），那是表目的的連接詞。填進去讀成 communicate clearly in order that the patient understands them completely（清楚溝通，好讓病人完全聽懂）。同一個意思的三種說法可以一起記：in order that ＋ 子句、so that ＋ 子句、in order to ＋ 原形動詞。
in return（作為回報）後面要接 for ＋ 名詞，不接 that 子句；in case 雖然也能接子句，但它是「以防萬一」，會讀成「以防病人完全聽懂」，語意剛好相反；in addition（此外）是轉承語，後面要接一個獨立的句子或 to ＋ 名詞，接不上這裡的 that 子句。三個都是 in 開頭的片語，形態吻合，容易被順手選走。
in order that ＋ 子句（以便、為了使……）、in order to ＋ 原形動詞（為了）、in return for（作為……的回報）、in addition to（除……之外）、be forced to V（被迫做某事）、communicate clearly（清楚溝通）。
Keele University in the United Kingdom has developed a "virtual patient," created by a computer, to help train the pharmacists of the future. Students in the university's School of 11 work with the "patient" to gain experience in effective communication and decision-making.
Students talk with the "patient" directly or by typing questions into a computer. The "patient" responds verbally or with gestures to indicate 12 such as pain, stress or anxiety. As a result, students are forced to communicate clearly 13 that the "patient" understands them completely.
The Virtual Patient can also be used to explore various medical situations. For example, the "patient" can be programmed to be allergic to certain medicine and can 14 serious reactions if student learners are not aware of the situation. This kind of practice allows students to learn from mistakes in a safe environment that would not be 15 with textbooks alone. The unique system can both be used in a classroom setting or for distance learning.