2. 专升本
  3. After they______the first super computer in the 1940s, scientists and engineers began to develop ways to create networks.

After they______the first super computer in the 1940s, scientists and engineers began to develop ways to create networks.

admin2019-05-17  19
问题 After they______the first super computer in the 1940s, scientists and engineers began to develop ways to create networks.
选项 A、create
B、created
C、have created
D、has created
答案B
解析 根据句意和从句中的时间状语in the 1940s可知，从句应用一般过去时， 表示过去某个特定时间或某一段时间内发生的动作。故选B。
转载请注明原文地址:https://kaotiyun.com/show/1eJC777K
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)