3. I often spend 2 hours surfing the internet a day.

It often takes .......

4. Whose document is it?

Who..........................................................................................

5. Although he was very rich, he wore simple clothes.

Despite ...............................................................

Giúp em với ạ

`3`. It often takes me `2` hours to surf the Internet a day.

`-` S + spend + thời gian + Ving

`=` It takes + O + thời gian + to V: mất bao lâu làm gì

`4`. Who is the owner of the document?

`-` Whose + N + be + O?

`=` Who + be + the owner of + O?: hỏi về chủ sở hữu

`5`. Despite being very rich, he wore simple clothes.

`-` Although + S + V, S + V

`=` Despite + N/Ving, S + V: Mặc dù

`3`. It often takes me 3 hours to surf the Internet a day.

`-` S + spend (s) + time + doing sth : dành thời gian làm gì

`=` It + takes + O + time + to do sth : mất của ai bao lâu để làm gì

`4`. Who is the owner of the document?

`-` Whose + N + be + S ?

`=` Who + be + the owner of + S ? (hỏi về sự sở hữu)

`5`. Despite being very rich, he wore simple clothes.

`-` Although + S + V : mặc dù 

`=` Despite / In spite of + N (phr) / Ving : mặc dù (chỉ sự tương phản)

`+` V-ing : khi 2 mệnh đề cùng chủ ngữ