1.→Because some fashion designers have printed lines of poetry on the "ao dai",It looks modern.
2.→The "ao dai" has been mentioned in poems by poets for centuries.
3.→The design and material used for men were not the same as the design and material used for women.
4.→My father hasn't smoked for two years.
5.→Why don't we use electricity economically?
6.→A whistle will be blown if there is an emergency.
7.→They began working in that factory ten years ago.
8.→He wishes he weren't late.
9.→The soil here is said to be very rich.
10. →Helen has been learnt chinese since 2000.
chúc bạn học tốt!!!!!
