People keep dogs and cats because they enjoy their friendship. Fish can't be friendly,but they have beautiful shapes and colours. It is a pleasure to watch them as they swim in their tanks. What do they need? First of all,the fish need a suitable tank,and you must fill the tank with suitable water. It is also good for them to have a few water plants in the tank to keep the water pure. Putting a few snails in the tank is a good idea too. They will keep it clean. What about feeding them? There are many kinds of fish food that you can get in pet shops. Most are suitable for all kinds of fish. You should feed your fish once a day only. It is important not to give them too much food. Just give them as much as they can eat in about 15 minutes. This will keep them healthy.

(   ) 1. Why do people keep dogs and cats?

   A. Because they can keep watch at home.

   B. Because they are friendly.

   C. Because they are lovely.

(   ) 2. Why is it a pleasure to watch the fish as they swim in the tank?

   A. Because their different shapes and colours are beautiful.

   B. Because they can smile to people.

   C. Because their shapes are beautiful.

(   ) 3. Some water plants and snails can

   A. keep the water full

   B. keep the water pure and clean

   C. keep the water clean and useful

(   ) 4. How can we feed the fish?

   A. Give them as much food as possible.

   B. Feed them once a day and give them as much food as they can eat.

   C. Feed them once a day only and give them as much as they can eat in about 15 minutes.

(   ) 5. The best title for the passage is "       "

   A. How to keep fish at home

   B. How to keep animals at home

   C. How to keep dogs at home

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