Certainly! Here are the 12 combined sentences in English:
1、She went to the store.
2、She bought some groceries.
3、She met her friend at the store.
4、Her friend offered to help her with the groceries.
5、They had a conversation.
6、They shared a few laughs.
7、She walked home from the store.
8、It started raining lightly.
9、She took shelter under a tree.
10、The rain stopped after a few minutes.
11、She continued walking home.
12、She arrived home just before dark.