- UID
- 7600
- 在线时间
- 小时
- 注册时间
- 2003-7-28
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
关于V-ING和定位从句的修饰
885的03, 23 According to United States Air Force officials, a cannon shooting dead chickens at airplanes has proved helpful to demonstrate what kind of damage can result when jets fly into a flock of large birds.
A) shooting dead chickens at airplanes has proved helpful to demonstrate (B) shooting dead chickens at airplanes has proved itself helpful as a demonstration of (C) shooting dead chickens at airplanes proves itself helpful as demonstrating (D) that shoots dead chickens at airplanes proves itself helpful to demonstrate (E) that shoots dead chickens at airplanes has proved helpful in demonstrating
为什么要选定语从句而不是 VING? 不要告诉我是因为 be helpful in doing |
|