Can I say,<br/><br/>(a) It started to rain cat and dog. John hurt his leg. He tried to walk with Peter, but he had no energy to do it.<br/><br/>(b) Last Friday was not a good day. As John and Peter were chatting happily, the rain came. They quickly ran to find shelter. <br/><br/>(c) As they were going home, the sky was getting dark and started to rain. They ran quickly to avoid getting wet from raining. <br/><br/>(d) Last Sunday, when John and Peter were going home, it suddenly started to rain. They ran quickly as they thought they could go home fast.