`124` How heavy is your brother `?`

`-` Hỏi về cân nặng : 

`@` How heavy + be + S `?`

`125` This is my brother's building .

`-` This/that/these/those + be + one's + N : Ở đâu là thứ gì của ai đó .

`126` When does Mai go to work `?`

`-` Hỏi về thời gian ai đó làm gì .

`@` When + aux-verb + S + V-inf + O `?`

`124.` How heavy is your brother`?`

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

`126.`When does Mai go to work`?`

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

`-`What's sb/sth weigh?

`=` How heavy `+` is/are+ sb/sth?

`-`Sth belong(s) to Sb

`=` Sb own(s) sth

`=`Sb's sth

`-` What time`.......``?`

`=` When`..............?`