小明看见了一个老爷爷跌在地上~这句话用英语怎么写~接下来还有3句

Xiaoming saw an old man fell on the ground.
小明送老爷爷去医院:
Xiaoming is sending the old man to the hospital.
小明看见老爷爷的家人来了后就放心的走了:
When Xiaoming saw the old man's family came,he went with a sigh.
小明扶起跌到在地上的老爷爷
Xiaoming escorted the old man up.
行了,没错了吧!

Xiaoming saw an old man fall onto the ground.

Xiaoming saw an old man fall onto the ground, and he went up (right away) to escort him.