My grandma ' s hearing(1.________)very good.However ,Rover is a very helpful dog.Whennever he(2.________) the doorbell,he starts barking.
My grandma ' s neighbours(3.________)a dog but they(4.________)four ducks.The four ducks(5._________)very loundy whenever a stanger (6.________)near their house.They (7._________)better security guards than dogs!
以上的word box:be,go,have,hear,help,live,make,quack