49.There are twenty packets of tea in this box
50 No one in this class is more handsome than this boy
51 Sydney is the most populous city in Australia
52 London is the capital of London
53 This is the most exciting book i have ever read
54 My country is famous for good and cheap restaurant
55 This exercise is more difficult than that one
56 finish=>finished(yet:dấu hiệu thì HTHT)
57 isn't=>doesn't(understand chia ở thì HTĐ)
58 beautifulier=>beautiful(trước tính từ dài có most)
59 homeworks=>homework(homework ko đếm được)
60 play=>plays(trước and là v(s/es) nên sau and thì V(s/es)
