1.Poets have mentioned the “ao dai” in poems for centuries.
->The “ao dai”……………………………………………………………………………………
2.My parents gave me 2 tickets to the concert last week
-> I …………………………………………………………………………………………………
3. People all over the world speak English.
-> English …………………………………………………………………………………………..
4. Minh last wrote to his pen pal five months ago.
-> Minh hasn’t …………………………………………………………………………………….