If you like science, you can _______ a scientist. A. am B. are C. be
He’s __________________ an e-mail. A. writing B. writeC. written
This is __________________duck. A. my B. an C. you
----__________? ----They are listening to music. A. What do they do? B. What are you doing? C. What are your grandparents doing?
There is a call ____ you. A. forB. on C. at
----Is Amy answering the phone? ----____________ A. Yes, he does. B. No, she is writing a letter. C. No, he isn't.