` 76 ` : Huyen goes to school on foot 

` - ` Walks = go on foot : đi bộ

`  Dịch `  : Huyenđi bộ đến trường

` 77 `  Are there over 800 pupils in your school ?

` - `  Are there + N số nhiều đếm đc

` 78 `  There are 6 children in your family

` - `  There are + N số nhiều đếm đc

`  79 `  : How much does a bowl of noodles cost ?

` - `  How much do / does + sth + cost ?

` 80 `  : How much do a cake and an orange cost ?

` - `  How much do / does + sth + cost ?

76. Huyen goes to school on foot every day

- walk = go on foot

77. Are there over 800 pupils in your school?

- Are there N(s/es)?

78. There are 6 children.

- There are N(s/es)

79. How much does a bowl of noodles cost?

- how much do/does S cost?

80. How much are a cake and an orange?

- How much is/are S?