ОЧЕНЬ Напишите, что правильно Make the following general question in the Reported Speech.

Nick asked his friend, “Will you stay at your sister’s?”

1. Nick asked his friend if will he stay at his sister's.
2. Nick asked his friend if he will stay at his sister's.
3. Nick asked his friend if he would stay at his sister's.
4. Nick asked his friend if he would stay at my sister's.