Read and choose. 根据下列情景选择正确的一项。
1．当你想问“张朋在哪里？”时，你应该说：____[ ]
A. Where is Zhang Peng?
B. What is Zhang Peng doing?
2．当你想问“他正在做什么？”时，应该说：____[ ]
A. What does he do?
B. What is he doing?
3．当你想问“他正在下棋吗？”应该说：____[ ]
A. Is he playing chess?
B. He is playing chess.
4．当有人问“他们正在吃面包吗？”你想回答“是的，他们正在吃面包，”你应该说：____[ ]
A. Yes, they are.
B. No, they aren't.
