( ) Where _____ you come from ? A. do B. are C. is
He’s __________________ an e-mail.A. writing B. write C. written
This is __________________duck.A. my B. an C. you
I have a __________________.A. pen B. pencil-boxes C. pencils
The elephants often water with trunks.A. drinking it’s. B. drinking their. C. drink their
----Where are your classmates ? ---- ________ over there. A. They’re B. He’s C. She’s