4. d ( have sth done )
5. b
6. a
7. b ( finish + ving )
8. a ( because of + Noun )
9. d ( even though = although + Mệnh đề )
10. c
11. b ( run out of : hết )
12. c ( suggest = ving / suggest sb should + V nguyên thể)
13. b
14. a ( keep in touch : giữ liên lạc )
15. c
16. d ( want to V)
Học tốt nha :) !