Dogs are ________ difficult ________ take care of.

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What do you think ________ I say?

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What do you think ________ the best pet for these people?

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－What's the ________pet?

－Cat.

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Which ________ these animals would be good pets?

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________lucky guy!

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What do you like ________, CD, flowers ________ scarf?

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What's the best gift Jim has ever ________?

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－Who give it________.

－His parents.

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A．him

B．to him

C．to he

－How about ________ calendar?

－Good idea.

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