试题题干
WORD FORMATION
Complete the following sentence with the proper form of the word in the bracket.
(pain) It is rather
to travel in summer by train for it is very crowded and without air-conditioning.
参考答案
试题解析
此处缺少形容词。
rather是副词，意为相当地，副词修饰形容词，所以空格处应该填形容词形式。变名词pain为形容词painful。
句意：夏季乘火车出游是相当痛苦的事情，因为人很多而且没有空调。