1. Ther son is allergetic to animal. They decided to get a cat (though)
=> Though their son is allergic to animal, they decided to get a cat
2. He will stay in England for 2 months more. He can perfect his English (in order that)
=> He will stay in England for 2 months more in order that he can perfect his english
3. There is nothing to eat. We have to go shopping to day (as)
=> We have to go shopping today as there is nothing to eat
4. We need an umbrella. It is raining heavily outside (since)
=> We need an umbrella since it is raining heavily outside
