Every Monday morning, students in our school would stand at attention,watching the national flag ______.A. raising B. rising C. being risen D. being raised答案是D,请问B为什么不对

Every Monday morning, students in our school would stand at attention,watching the national flag ______.A. raising B. rising C. being risen D. being raised答案是D,请问B为什么不对
Every Monday morning, students in our school would stand at attention,
watching the national flag ______.
A. raising B. rising C. being risen D. being raised
答案是D,请问B为什么不对

Every Monday morning, students in our school would stand at attention,watching the national flag ______.A. raising B. rising C. being risen D. being raised答案是D,请问B为什么不对
选D being raised
解析：因为国旗是不会自己升起的,是被升起的,所以要用被动语态.
Every Monday morning,students in our school would stand at attention,watching the national flag being raised．
每周一早晨,我们学校的学生会立正观看升国旗.

旗被升起，要用被动语态

Every Monday morning, students in our school would stand at attention,watching the national flag ______.

A. raising
B. rising
C. being risen
D. being raised

答案：D

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Every Monday morning, students in our school would stand at attention,watching the national flag ______.

A. raising
B. rising
C. being risen
D. being raised

答案：D

译文：每逢周一早晨，我们学校的学生们都会立正观看升国旗。

解析：国旗被旗手升起，应该用被动语态

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国旗他自己是不会升起的，是被别人升起啊，所以 选D

B是主动语态，应该用被动语态

D