Baby dogs are ________ puppies.A.called B.call C.calls
( )I _____the name of a friend. A. write B. writing C. am write
( )There is _____ big bird in the tree. A. a B. an C. the
( )Why are you _____ ? A. laugh B. laughing C. sing
( )Why do you _____cups on your heads? A. have B. having C. had
( )It’s easy _____make mistakes with English words. A. to B. for C. of