( ) 1. A. It's about 220 kilometres. ( ) 2. A. It's four dollars. ( ) 3. A. I need ten gifts. ( ) 4. A. I'll go to Beijing. ( ) 5. A. I'm reading a book.
B. It's 220. B. They're twenty dollars. B. Ten kilometres. B. I'll fly home to China. B. He is reading a book.