`123.` There is a living room, two bedrooms and a kitchen.

`-` There `+` be `+` ...: có ....

`124.` How heavy is your brother?

`125.` This is my brother's building.

`-` belong (s) to `+` sb: thuộc về ai

`=` N `+` tên `+` 's: cái gì của ai

`126.` When does Mai go to work?

`-` When: khi nào `=` what time: mấy giờ

`-` Do/Does `+` S `+` V-inf?

`-` go to work: đi làm

123. There is a living room, two bedrooms and a kitchen in his house.

There is + a/an + N số ít 

124. How much does your brother weigh? / How heavy is your brother?

How much + do/does + S+ weigh? hỏi cân nặng 

How + ADJ (heavy) + be+  S? 

125. This is my brother's building.

One's + N : cái gì của ai 

126. When does Mai go to work?

What time = When: hỏi thời gian 

`color{orange}{~MiaMB~}`