... students are cleaning up the trash is a beautiful one. (where, which, who, whom)9. The parrot………….can speak some words belongs to my close friend. (who, which, whom, where) 10. This is the best movie……………………….I ... what, why, whether)35. Owning a car is too costly,………………… I traveled by bus instead. (so that, so, that, since)36. …the old man has never traveled by plane before, he is not worried or afraid. (Thus, ... today. (polluted, pollute, pollution, polluting)26. In order to save money, we should use public transport…………motorbikes. (instead of, except, besides, along with)27. I’m really……………………that people...