试题题干
WORD FORMATIONS
Complete each of the following sentences with the proper form of the word in the bracket.
(short) The new procedure could
hospital stays by two to three days.
参考答案
试题解析
此处缺少动词。
could后缺少动词，所以short转换为动词形式shorten，意为缩短/减少......。
句意：新程序可以缩短2到3天的住院时间。