Verbs in the correct tense!

1. Edward got became tired. He waited what seemed like eternity for someone to stop and give him a lift.  for ages, but There was hadly any traffic around. One driver had stopped earlier but, sadly, he didn’t go not heading to Glasgow. As he was looked ing up at the darkening sky, Edward started began to wish that he didn’t leave home in such a hurry.

2. Tom and Sally have been walking for about an hour when it started to rain. They forgot to take umbrellas with them and so Tom suggested stopping at a nearby cottage and to asking for shelter. Unfortunately, it was raining very so hard that, by the time as they got to neared the cottage. They had been soaked to the skin.

3. Mary had prepared everything for the dinner party hours before the guests was supposed to arrive. As she was setting the table when suddenly she had remembered that she had forgotten to give her address to one of the guests. While looking She looked for his phone number in her diary, when she realized she had made a mistake. The dinner party is for tomorrow. was the next day. You can also used past tense, "The dinner party was for tomorrow".  I used present tense is to make the reader feel that the action was taken right then.  This makes the story more interesting.

Verbs in the correct tense!

1. Edward got tired. He waited for someone to stop and give him a lift for ages, but there was hardly any traffic. One driver had stopped earlier but, sadly, he didn’t go wasn't going to Glasgow. As he was looking up at the dark sky, Edward started to wish that he didn’t leave hadn't left home in such a hurry.
2. Tom and Sally have had (past tense) been walking for about an hour when it started to rain. They had forgotten to take umbrellas with them, so Tom suggested stopping at a nearby cottage and asking for shelter. Unfortunately, it was raining so hard that, by the time they got to the cottage, they had been soaked to the skin.
3. Mary had prepared everything for the dinner party hours before the guests was were supposed to arrive. She was setting the table when suddenly she had remembered that she had forgotten to give her address to one of the guests. She looked for his phone number in her diary, when she realized she had made a mistake. The dinner party was the next day.

Good, very few mistakes!