5. My mother enjoys cooking delicious meals for the whole family in weekends. A. cooking B. for C. whole D. in weekends 6. Kelvin must be addicted on the Net - he holds his phone all the time. A. must be B. on C. holds D. all the time 7. Watching TV too much can make us to feel tired and have a headache. A. Watching B. too much C. to feel D. a headache 8. Emily don't mind working as a volunteer for an environmental organisation. A. don't B. working C. volunteer D. environmental 9. Don't be disappointed because you can give up your bad habits and live happy. A. Don't B. disappointed C. give up D. happy 10. On my opinion, playing computer games is boring and wastes time. A. On my opinion B. playing C. boring D. wastes