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.