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III. Choose the best option to complete each sentence.
1. How often do your grandparents come................to their home town?
A. out B. down C. around D. back
2. We are encouraging the people in our community to cut ..................on bags.
A. out B. down C. around D. back
3. Before I visit a place, I usually find ..............about its history.
A. out B. down C. around D. back
4. When we went to Sydney, we only had a couple of hours to look.......................
A. out B. down C. around D. back

IV. Read the text about Vietnamese speciality - Pho.