从括号中选出一个填空。 1. How ______ you? (am, is ,are) 2. What ______ this in English? (am, is ,are) 3. What color is the pen? It ______ red. (am, is ,are) 4. What's this? It's ______ orange. (a, an ) 5. What's this? It's ______jacket. (a, an ) 6. It's ______ English book. (a, an ) |