2. 外语
  3. The______of the steam engine occurred before the development of the railroad.

The______of the steam engine occurred before the development of the railroad.

admin2019-07-01  68
问题 The______of the steam engine occurred before the development of the railroad.
选项 A、invent
B、inventive
C、inventor
D、invention
答案D
解析 A noun must follow the. The noun invention is the subject of the sentence.
转载请注明原文地址:https://www.kaotiyun.com/show/1afO777K
0

托福（TOEFL）

相关试题推荐
随机试题
最新回复(0)