---Would you please ______ the door?A. open B. to open C. opening
( )----what’s this? ----It’s a________ A.pig B. duck
( )----what’s this? ----It’s a________. A. book B. panda
( )----what’s this? ----It’s a________ . A. pencil B. pen
( )----what’s this? ----It’s a________. A.duck B. cat
( ) ----what’s this? ----It’s a________. A. dog B. cat