补全下面的短文。
Welcome to Uncle John's farm.The farm is ____.You can see ____animals on the farm.They're horses,cows, ____and hens.On the farm,there is a vegetable garden.Look! ____are carrots.Those are ____and onions.
如图,在四棱锥O﹣ABCD中,OA⊥底面ABCD,底面ABCD是边长为2的正方形,OA=2,M、N、Q分别为OA、BC、CD的中点.
证明:DN⊥平面OAQ;
Look at the giraffe.It's so____.(thin;tall)