Rewrite these sentences using if...................
1. Mary is very shy; that's why she doesn't enjoy parties.
...........................................................................................................
2. I don't have much time, so I read very little,
..........................................................................................................
3. We don't have central heating, so the house is very cold.
..........................................................................................................
4. He never shaves; that's why he looks unattractive.
.........................................................................................................
5. I'm fat, so I can't get through the bathroom window.
.........................................................................................................