There is something____in the street.A.happen B.happened C.ha

答案是C
你可以这样看：
1 There is something in the street.
2 Something is happening in the street.
现在,合并它们：
There is something / something is happening in the street.
现在,去掉一个something,用that替换：
-------There is something that is happening in the street.------这是定语从句.
现在,再去掉that is :
There is something happening in the street.------在这里,happening是分词结构做something的定语.

选C
表明正在发生的事 ing
there is接现在进行时

选 B

There is something happened in the street.这是一个被动语句。
只要不是有生命的物体，都没有主动形式，都要用被动，这里的something是没有生命的。
例： kelly is eating an apple 这里的Kelly 是人名，说明主语是有生命的 用主动
An apple i...