根据情景,用Shall I.or Shall we...写句子.

根据情景,用Shall I.or Shall we...写句子.
1.You try on a jacket in a shop
You are not sure whether to buy it or not.
You ask a friend for advice.
____________________it?
2.It's Ann's birthday next week
You want to give her a present but you don't
Know what.You ask a friend for advice.
What_________________?
3.You and a friend are going on holiday on holiday together but you haven't decided where.
You ask him\her
Where___________________?
4.You and a friend are going out
You haven't decided whether to go by car or to walk.You ask him\her.
_________________or_________________?
5.Your friend wanes you to phone later.
You don't know what time to phone.
You ask im\her
What time______________?