根据下面资料,回答题 Almost everyone suffers from a headache 21 (occasional). But som...

作者: tihaiku 人气: - 评论: 0
问题 根据下面资料,回答题 Almost everyone suffers from a headache 21 (occasional). But some people suffer from repeated, frequent headaches. What is headache What causes it What can you do about a headache What research is being done on headaches The dictionary de
选项
答案
解析 if。解析:考查状语从句。此句为条件状语从句,缺少引导词,且从句中省略了主语和be动词,故填if。

相关内容:根据,下面,资料,Almost,everyone,suffers,headache,occasional,som...

猜你喜欢

更多 网友评论0 条评论)
暂无评论

Copyright © 2012-2014 知识的智慧 Inc. 保留所有权利。 Powered by cengyan.com

页面耗时0.0215秒, 内存占用1.14 MB, Cache:redis,访问数据库14次

鲁ICP备17016787号-14