We often see some people _____(beg) for money in the street.填正确形式,火速讲明理由

问题描述:

We often see some people _____(beg) for money in the street.
填正确形式,火速
讲明理由

begging,看某人做正在做什么事

begging

beg,看过某人做某事,用原型,如果用begging,是说看见某事正在进行

就用 beg....看见某人做某事

beg原形
see sb. do sth.看见某人做过某事
see sb. doing sth.看见某人正在做某事
句子里有often,用原形