His son is really smart. He is as sharp as a _____.

1.   ?    nail
2.   ?    tack
3.   ?    pin

I was feeling very bad yesterday. I was as sick as a ____.

1.   ?    dog
2.   ?    cat
3.   ?    puppy

This old lady doesn't want to listen to other people. She is as stubborn as a ____.

1.   ?    cow
2.   ?    mule
3.   ?    bull

Although he is old, he is as fit as ______.

1.   ?    a bear
2.   ?    a fiddle
3.   ?    a mule

I haven't eaten for one whole day. I am as hungry as a _____.

1.   ?    horse
2.   ?    dog
3.   ?    bear

He has a lot of work to do. He is as busy as a _____.

1.   ?    donkey
2.   ?    bear
3.   ?    beaver

He's been sick for a long time. He is as weak as a _____.

1.   ?    kitten
2.   ?    puppy
3.   ?    cat

His business is going well, and he is getting married next month. No wonder he is as happy as a ____.

1.   ?    beaver
2.   ?    bird
3.   ?    lark

Last night we had a party and we drank a lot. We were all as drunk as ____.

1.   ?    sailors
2.   ?    larks
3.   ?    skunks

John and Mary haven't spoken to each other for days. It's as plain as ____ that they had a fight.

1.   ?    paper
2.   ?    day
3.   ?    water