试题题干
WORD FORMATIONS
Complete each of the following sentences with the proper form of the word in brackets.
Some students lost marks 
because they hadn’t read the question carefully. (simple)
参考答案
试题解析
此处缺少副词。
句子主干完整。所以空格处可填副词修饰动词lost。simple是形容词，变为副词simply。
句意：有些学生仅仅因为没有仔细阅读问题而失分。