3. — 他们在做什么？ ____________________

What are they doing?

— 他们正在公园里打篮球。 ______________________________ ______________________________ 4. — 他在做什么？_______________ — 他在他朋友家里学习。 ________________________________

They’re playing basketball in the park.

What’s he doing?

He’s studying in his friend’s home.