1.Are they busy? 2. Who is busy? 3. What are they doing? 1. Are they working at a very interesting project? 2. Who is working at a very interesting project? 3. What kind of project they are working at? 4. What are they working at? 5. What are they doing?
1. Are they working at a very interesting project?
2. Who is working at a very interesting project?
3. What kind of project they are working at?
4. What are they working at?
5. What are they doing?