Open the brackets while the artist (draw) the picture the children (look) at him. it (snow) hard when they (go) to the mountains to ski. i couldnt go away because it (rain) hard and i (not have) an umbrella

While the artist was drawing the children were looking at him.

It was snowing hard when they went to the mountains to ski.

I couldn't go away because it was raining hard and I didn't have an umbrella