I think the dog is a good pet for an old man because it is easy to take care

i think getting up early is a good habit for all of us because it is good for our health.谢谢，能不能多给几句。这可要自己去想了，自己理解了，想表达什么都可以。这很简单， 就是 你认为什么什么（一件事） 再加上一个原因，就OK了。