2. 外语
  3. Some of these studies (have shown) that although some people have trouble (to fall asleep), others have an (equally) difficult t

Some of these studies (have shown) that although some people have trouble (to fall asleep), others have an (equally) difficult t

admin2011-06-29  65
问题 Some of these studies (have shown) that although some people have trouble (to fall asleep), others have an (equally) difficult time (waking up).
选项 A、have shown
B、to fall asleep
C、equally
D、waking up
答案B应改为falling asleep。
解析 have trouble doing sth.
转载请注明原文地址:https://kaotiyun.com/show/d86O777K
0

考博英语

相关试题推荐
随机试题
最新回复(0)