hola!
1. Who is Halloween?
2. When did you stay in New York?
3. Where is your favourite colour?
4. Why didn't you do the homework?
5. What do you study?
6. How many students are there in this course?
Answers:
1. Halloween is a holiday celebrated on October 31st.
2. I stayed in New York last summer.
3. My favourite colour is blue.
4. I didn't do the homework because I was sick.
5. I study engineering.
6. There are 25 students in this course.
salu2!