we see the street cleaner__the street every day .(clean/cleaning)

问题描述:

we see the street cleaner__the street every day .(clean/cleaning)

clean
see sb.do sth 看见某人做某事
see sb.doing sth看见某人正在做某事
根据题意只能为每天我们看见清洁工扫大街,是看见某人做某事,故选see sb.do sth 看见某人做某事