1.i'm writing a letter to my penpal.对penpal提问?----------------------------------2.she visited her grandparents last summer holiday.-- -- she --last summer holiday.对her grandparents提问.

1.i'm writing a letter to my penpal.对penpal提问?----------------------------------2.she visited her grandparents last summer holiday.-- -- she --last summer holiday.对her grandparents提问.
1.i'm writing a letter to my penpal.
对penpal提问?
----------------------------------
2.she visited her grandparents last summer holiday.
-- -- she --last summer holiday.
对her grandparents提问.

1.i'm writing a letter to my penpal.对penpal提问?----------------------------------2.she visited her grandparents last summer holiday.-- -- she --last summer holiday.对her grandparents提问.
1.i'm writing a letter to my penpal.
who are you writing a letter to?
2.she visited her grandparents last summer holiday.
who did she visit lsat summer holiday?