Complete the sentences.完成句子，每格一词：
1. She is ________ Zhang. She is my teacher.
2. Sam, how are you? ________, thanks.
3. What's this? It's an ________.
4. Tweet-tweet. I hear a ________.
5. I’m hungry. I want to eat some ________.
6. I ________draw a dog on the paper and ________it white. What a lovely dog!
