=>
23. D (Phong is twelve)
24. A (He's tall and rather thin)
25. B (He has short curly black hair and brown eyes.)
26. C (Phong is funny and outgoing.)
27. A (His favourite subject is Maths. He's not good at Science but he studies hard to pass it.)

$\text{23.}$ D

→ Dẫn chứng : Phong is twelve . ( Dòng thứ 3 ) 
$\text{24.}$A 

→ Dẫn chứng : He's tall and rather thin . ( Dòng thứ 3 ) 
$\text{25.}$B

→ Dẫn chứng : He has short curly black hair and brown eyes. ( Dòng thứ 3 ) 
$\text{26.}$C

→ Dẫn chứng : Phong is funny and outgoing. ( Dòng thứ 4 ) 
$\text{27.}$A

→  His favourite subject is Maths. ( Dòng thứ 9 ) 

$#Keisha$