I didn't go to see the film because I had many things to do(对because I had many things to do提问)They went to Hangzhou last summer.(对 to Hangzhou 提问)

I didn't go to see the film because I had many things to do(对because I had many things to do提问)They went to Hangzhou last summer.(对 to Hangzhou 提问)
I didn't go to see the film because I had many things to do(对because I had many things to do提问)
They went to Hangzhou last summer.(对 to Hangzhou 提问)

I didn't go to see the film because I had many things to do(对because I had many things to do提问)They went to Hangzhou last summer.(对 to Hangzhou 提问)
Why didn't you go to see the film?
Where did they go last summer?