11. What is the thickness of your book? -> How ..? 12. What is the depth of the lake? -> How ? 13. What is the age of her son? -> How ? 14. What is the width of your room? -> How ..? 15. What is the length of that road? -> How ..?

`color{red}{-P-}`

`11`. How thick is your book?

`-` thickness : độ dày

`-` thick : dày

`12`. How deep is the lake?

`-` depth : độ sâu

`-` deep : sâu

`13`. How old is her son?

`-` age : tuổi

`14`. How wide is your room?

`-` width : chiều rộng

`-` wide : rộng

`15`. How long is that road?

`-` length : độ dài

`-` long : dài

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`@` What is the + N + of + N? 

`=` How + adj + tobe + N?