Here’s how the sentences match with the options:

1 - H: When we arrived in Mostar, we went **then we set off on our holiday.**

2 - C: My brother got up late, so he missed **a bag at the airport.**

3 - A: I arrived early because I had to check in **then we set off on our holiday.**

4 - D: After the cathedral tour, we looked round **a guided tour of the city.**

5 - B: It was a beautiful day, so I decided to go **cycling along the canal path.**

6 - E: He got to the port in plenty of time to **the Atlantic Ocean by boat.**

7 - F: We put the luggage in the boot of the car; **a bag at the airport.**

8 - G: It takes between six and eight days to cross **the Atlantic Ocean by boat.**

Correct matches:
1 - G
2 - C
3 - A
4 - D
5 - B
6 - E
7 - F
8 - H