=>
1. You should start to run and see if that helps you to lose weight.
-> should V : nên làm gì
2. John has been chosen for the school's football team.
-> bị động HTHT have/has been V3/ed
3. Although it is very noisy, we enjoy living there.
-> although S V : mặc dù
4. We were disappointed at the failure of the team.
-> be disappointed at : thất vọng về
5. The guide doesn't speak slowly enough for me to understand.
-> adj/adv enough (for sb) to V : đủ...để