14. You all can also visit some beautiful ___ islands.
A. hailstone B. limestone C. sandstone D. millstone
15. Besides, you can swim, sunbathe or relax on quiet clean ___ beaches.
A. sand B. stone C. rubble D. rock
16. For accommodation you can stay in ___ and mini-hotels in Ha Long City. A. restaurants B. cafeterias C. hotels D. motels
17. Guest houses are cheaper, they are ___ accommodation.
A. low B. low-priced C. high D. high-priced
18. Some parts of the city are fairly dangerous. They're not very ___ late at night.
A. hot B. interesting C. safe D. exciting
19. What an ___ day! I am so ___ from picking strawberries.
A. exhausted /tired B. exhausting / tiring C. exhausting / tired D. exhausted / tiring
20. Would you like to go to a concert tomorrow night? - ___.
A. Oh, I'd love to. B. Oh, that's a good idea. C. I'm sorry, I can't. D. All are correct