-What are you doing? -I'm the ball.A. hit B. hitting C. hiting
A ______ works in a bookstore.A. writer B. bookseller C. reader
A ______ can help you find the way.A. dancer B. doctor C. policeman
Can you ______? Yes, I can.A. swim B. swims C. swimming
Listen! The girls ______ in the classroom now.A. sing B. sings C. are singing
______ dress is it? It’s Amy’s.A. What B. Which C. Whose