There are a lot of vehicles on the streets in the city. There are few vehicles on the streets in the countryside

16. There are a lot of vehicles on the streets in the city. There are few vehicles on the streets in the countryside. (Crowded)
-> The streets in the city
17. The buses run every 30 minutes .The trains run very hour. (Frequent)
-> The buses
18. Yesterday the temperature was six degrees. Today it’s only three degrees. (Cold)
-> It
19. I’m quite tall but you are taller. (As……..as)
-> I’m
20. Hoi and Tim are both 13 year old. (The same……..as)
-> Tim is age