During the time when you were away Elis was looking after your dog. YES this one is right He caught a cold through drinking cold water. added ( a) in to make this right, but you can not catch a cold from drinking cold water it is a virus, Do you get a let for your house? I am not sure what you mean? are you referring to renting out a house? He is said to have gotten married ten times. changed got to gotten What withheld you from coming to school? another way would be :what kept you for coming to school. that would be how an english speaker would say this

Elias was looking after your dog while you were away. He caught a cold from drinking cold water. I don't understand the third sentence so I will skip that. He is said to have gotten married ten times. What prevented you from coming to school?