圈出合适的介词并填空。
（1）She comes______（ out / in）from the bookshop.
（2）Turn right_________（at / on）the second crossing.
（3）Go_______（along / to ）this street.
（4）The shopping mall is_______（at / on） your right.
（5）The boy lost his way.so he is asking a policeman______（(to / for）help.