2. 外语
  3. In recent years speculation has abounded that Albert Einstein can have had Asperger syndrome.

In recent years speculation has abounded that Albert Einstein can have had Asperger syndrome.

admin2011-07-28  30
问题 In recent years speculation has abounded that Albert Einstein can have had Asperger syndrome.
选项
答案can——must
解析 表示对过去事实肯定的猜测，结构是must have done sth．，反之，结构应为can’t have done sth．。
转载请注明原文地址:https://kaotiyun.com/show/prYO777K
0

专业英语八级

相关试题推荐
随机试题
最新回复(0)