2. 专升本
  3. While ______ , I often notice that some students are absent-minded (心不在焉的).

While ______ , I often notice that some students are absent-minded (心不在焉的).

admin2020-04-26  32
问题 While ______ , I often notice that some students are absent-minded (心不在焉的).
选项 A、teach
B、teaching
C、taught
D、to teach
答案B
解析 while／when／before／after／as soon as等词后面+动词时，用动词的doing形式。
转载请注明原文地址:https://kaotiyun.com/show/5RxC777K
本试题收录于： 英语题库普高专升本分类
0

英语

普高专升本

相关试题推荐
随机试题
最新回复(0)