2025-05-02 04:46:37
精选答案
接名词单数
如：
It was a desk.
There was an apple on the tree yesterday.
1. 现在分词,构成过去进行时态：He was reading.2.过去分词,构成被动语态：They were defeated.二、作系动词3.现在分词、动名词短语作表语：The film was moving.His job was teaching English .4.过去分词作表语：We were moved.5.不定式作表语：1）有to不定式：His work that day was to clean the blackboard.2) 无to 不定式：What he should do is clean the blackboard.
2025-05-02 04:46:37
其他答案
was是动词 ，a是数量词，因此 ，后面必须是一个名词 ，又因为a是一个数量词 ，后面必须是一个可数名词
2025-05-02 04:46:37
其他答案
was a后面加单数可数名词，或者加形容词在加单数可数名词。
was a中was 是系动词be的过去式，是单数形式，不定冠词a加单数可数名词是它的表语，was加a＋可数名词构成动表短语，在句子中可以作谓语。例如 He was a tall boy(他是个高个子男孩儿.)
