把每组词中不同类的单词的序号填在( )里。(1)A. bus B. bicycle C. truck D. bed(2)A. tiger B. new C. wolf D. elephant(3)A. rock B. eraser C. pencil D. pen(4)A. apple B. banana C. mountain D. orange
I know _________ mother is a duck. A. they B. their C. them
There _________ a lot of sheep over there. A. is B. isn’t C. are
The bear has four _________. A. baby B. babies C. babys
--- Mary, let’s _________ animals. --- All right. A. make B. makingC. makes
The hens _________ swim. A. can B. can’t C. are