习题演练1.I____acat.2.He____adog.3.She____longhair.4.We____abighouse.5.They____ahappyfamily.6.It____ashorttail.7.You____agoodteacher.8.Elva____twobigeyes.9.Tom____aredpen.10.Mymother____abeautifulnose.11.Cats____fourlegs.12.Dogs____(have)twoears.13.Myfather____abluecar.14.Everybody____twohands.15.I____apet.16.Lily____(have)adoll.17.Students____(have)manybooks.18.Girls____(have)manyskirts.19.The...