Life in modern cities becomes busier. Some people think we cannot raise pets such as cats or dogs. We should spend our time on other things such as work. In my opinion, I think raising pets can relieve our burden of life. Pets such as cats and dogs can bring us more pleasure when we feel lonely, and need a company. Pets can entertain us. Maybe some people think we have no time to raise pets. But raising pets doesn't need a lot of time if we are not too lazy. In fact, raising pets is not complicated. What we have to do to raise them is washing them, taking food to them and so on. Even if they have no use for anything, they will not take you much time or energy.
In a word, pets will become our friends. We shouldn't be afraid of spending much time raising them. If you try to raise them, you will find the interest in busy life.