1 i enjoy playing sports because it is good for my health

-> ta có cấu trúc enjoy + V-ing 

-> và cấu trúc enjoy doing something 

2 do your children go camping every summer holiday ?

-> thì HTĐ 

-> dấu hiệu nhận bt : every summer holiday

-> cấu trúc dạng nghi vấn ở thì HTĐ : do / does + S + V nguyên mẫu

3 i think photography can be an expensive hobby

-> ta có cấu trúc ; think + N 

4 my cousin will give me a book as a gift on my next birthday

-> thì TLĐ 

-.> dấu hiệu nhận bt : next birthday

-> cấu trúc : s + will + V nguyên mẫu 

5  he finds mountain climbing dangerous so he doesn't take it

-> thì HTĐ

-> cấu trúc thì HTĐ dạng phủ định : S + don't / doesn't + V nguyên mẫu 

-> cấu trúc find something + adj 

6 i hope in the future he will teach me how to do eggshell carving

-> thì TLĐ 

-.> dấu hiệu nhận bt : in the future

-> cấu trúc : s + will + V nguyên mẫu