挑出不同类的一项A.bird B. bear C. blue
Jack helped Helen _______ her homework. A. do B. does C.did
________ climb up the tree. A. Don’t B. doesn’t C. didn’t
The mouse said ________. A. happy B. happly C. happily
She dances very_________. A. good B. well C. beautiful
The mouse ______ away. A. run B. runs C.ran