外研版英语(刘兆义主编)三年级下册 Unit 1 Pets 课时练习一、单选题1.- ______ is it?( )- A fish. A. What B. How many C. Have2.- ______ is it? ( )- Red and yellow. A. What colour B. How many C. Have3.- ______ pets are there? ( )- Six. A. What colour B. How many C. Have4.- Have...