12个带“when”和“while”的英语作文，需要有连贯性……哪位大虾能帮帮忙啊，急用……

i had a dog when i was 9 years old. i got the dog while i was eating my birthday cake. It was very cute.i always play with it while my mom was cooking in the afternoon. but it so naughty when we didn't notice it. one day, the dog came to my room when i was doing my homework. the dog jumped on my bed while i was drinking water. when i noticed that, the dog had already gone. and my bed was so dirty. i thought i had to tell my mom. so i go downstairs while my mom was watching TV. i told my mom when she began to prepare dinner. she heard that very angry. my mom was yelling at my dog while the dog came into kitchen. we started to cleaned my room. after cleaned my bedroom. my mom began to cook and i played with my dod. while my mom was cooking, someone knocked the door. i opened the door and my dad came in. at that moment, my dog drop down from stairs. i run to my dog when my dog was crying. and our family sent my dog to pet hospital immediately.
12个。故事很烂但是请勉强接受吧，重复用这个句子还要连贯真是不怎么容易。