题目内容：
完成填空：Guinea pigs are intelligent and quiet animals. They may develop a close bond with you and may reward you with chirps, purrs, squeaks or whistles. Guinea pigs do not 51 very much if
you do not spend much time with them. However, if you spend time with them, they will become more responsive towards you.
Guinea pigs are very active and they enjoy running through 52 (tunnel) and mazes. If you give them a toy, they will play with it. 53 you have more than one guinea pig, you may observe that they like to play games of chase with each other. Guinea pigs are social animals. They like to interact with others. However, be 54 (carefully) not to overcrowd their homes. This is because it is very stressful for them and they may attack each other. Do not change their food or environ-ment as they do not like changes.
So still interested in having a guinea pig as a pet? Just remember to 55 note of the above points.
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