Choose the best option to complete each of the following sentences.
15. It’s crucial for ___ to walk only on the pavement or footpath.
A. passengers B. pedestrians C. models
16. _________ need to obey the traffic rules by not carrying more than one passenger.
A. Pedestrians B. Elder people C. Cyclists
17. “Transformer” is a _______ film which can help us know more about future robots. A. science fiction B. historical C. romance
18. It is an honor for those actors who can take part ___ Cannes Film Festival. A. on B. in C. over
19. _________ that documentary is boring, I still love the main character in it. A. However B. Although C. Because
20. _________ is one of special festivals for children in most Asian countries. A. Tulip festival B. Halloween C. Mid-Autumn Festival