题目内容：

C

Can you train your cat to actually use your toilet? Can you not have to deal with litter boxes any more? Well for many people the answers to these questions are yes．

You may have heard that some people have managed to train their cats to use the human toilet, Well this is correct．One advantage to this is the fact that you no longer have to lug heavy bags of litter home from the supermarket, or worry about cleaning out the dirty litter everyday．

Like any other cat training program, training your cat to use the toilet takes times and patience, you just can put your cat on the toilet and hope that they can use it．

By slowly shaping your cat’s behavior over a couple of weeks, you too can end lugging heavy bags of cat litter home from the supermarket．First, start by slowly moving the litter box closer and closer to the toilet each day, so your cat gets used to being in the bathroom and being around the toilet．

Next, when you have had to litter box next to the toilet for several days, slowly raise the litter box higher and higher each day until it is at the level of the toilet．Then find an insert for the top of the toilet, like a shallow pan that can sit in the rim of the toilet and hold litter．

Once your cat gets used to using this litter pan on top of the toilet for a week or so, try removing the pan and your cat should be able to use the toilet．

Like any cat training program, it takes time and effort on the part of the cat owner to do this．Don’t get frustrated with your cat if she is not learning as fast as you would like, many cats learn at their own pace．With a little effort you too can have a toilet trained cat．

64．The author advises you to train your cat to use a toilet so that may    ．

A．keep the toilet clean

B．keep the cat clean

C．save a lot of trouble

D．save a lot of money

65．According to the passage, cat toilet training is a     process．

A．quick                     B．Complicated            C．difficult           D．gradual

66．When you have managed to get your cat to use the toilet, the litter box    ．

A．is no longer needed                B．is still needed

C．should be kept where it is                 D．should be put back where it was

67．We can see from the passage that“a shallow pan”(in Para 6 )    ．

A．is used instead of the litter box               B．is used to protect the cat

C．helps to raise the litter box             D．helps to clean the toilet