was在原形是be
be动词后可接名词、形容词、副词、现在分词和过去分词
如:
He was a student.
He was very happy .
He was running .
The bridge was built last year.
was在原形是be
be动词后可接名词、形容词、副词、现在分词和过去分词
如:
He was a student.
He was very happy .
He was running .
The bridge was built last year.