call的过去式是什么？

vi. 呼叫；拜访；叫牌

vt. 呼叫；称呼；召集

call的变形属于规则变化，call的过去式和过去分词都是在其后面直接加_ed,即called。

例句：

The child waited two hours before she was called to give evidence.

那个小孩等了2个小时才被传唤去做证。

A market researcher called at the house where my uncle was living.

一位市场调查员到过我叔叔的住处。