`2.` I spent all the morning preparing lunch 

`3.` It took Anna three days to visit VN

`4.` My son spent three years studying in this college

`5.` It takes me 2 hours to do my homework every day

`6.` It takes them 10 days to paint this house

`7.` It took her 2 days to tidy her rooms last week

`8.` It took them half an hour to go to school

`=` They used to spend half an hour going to school

`9.` It takes us 30 minutes to review our lesson before class

`10.` He spent twelve hours flying from ... to ...

`-` Cấu trúc:

`-` Sb spend(s)/ spent + (time) + doing sth 

`-` It takes/ took + sb + (time) + to do sth