试题题干
WORD FORMATION
Complete the following sentence with the proper form of the word in the bracket.
(horrify) He was
at the thought of his son moving about on a stage in tights.
参考答案
试题解析
此处缺少形容词。
was是系动词，at是介词，所以空格处缺形容词，而且该形容词需与at搭配。所以变horrify为形容词horrified，be horrified at：对某事感到恐惧/震惊。
句意：他对儿子要穿着紧身衣在舞台上走来走去的想法表示很吃惊。