1. A                      

2. A            

3. B        

4. A  

Transcript:

1. A: Where were you last summer?

B: I was in London.

2. A: Were you on the beach last weekend?

B:  No, I wasn’t. I was at the campsite.

3. A: Where were you yesterday?

B: I was in the countryside.

4. A: Where were you last summer?

B: I was in Tokyo.