`5.` You shouldn't read book in dim light.

`+` should ( not ) + V-inf

`+` It + tobe ( not ) + adj + idea to do sth

`=` S + should ( not ) + V-inf

`+` tobe + adj

`6.` How much is this computer `?`

`-` How much does this computer cost `?`

`+` What is the price of + N ( s-es ) `?`

`=` How much + tobe + N ( s-es ) `?`

`=` How much + do / does + N ( s-es ) + cost `?`

$#Ribee$

5. Its not good idea to read book in dim light.

You shouldn't read book in dim light

Dịch: Bạn không nên đọc sách trong ánh sáng lờ mờ

6. What is the price of this computer?

How much does this computer cost?

=How much is this computer?

Cấu trúc: How much do/ does + S + cost?

                How much+be+N?