Here are questions formed for each statement:

1. **Where were you last night?**
- I was at the restaurant last night. The juice was yucky.

2. **Where was Nam yesterday?**
- Nam was at home yesterday. His family was funny.

3. **Where were Anh and Mai last week?**
- Anh and Mai were at the stadium last week. The people were noisy.

4. **Where was your grandma last Monday?**
- My grandma was at the cinema last Monday. The movie was scary.

5. **Where were they last weekend?**
- They were at the bookstore last weekend. The student was quiet.

6. **Where were you yesterday?**
- I was at the bakery yesterday. The cupcakes were delicious.