____________(you/open) the window yet? - No, I _____________.
have you opened ; haven't
I can't find my mobile phone. - ________________(you/lose) it?
have you lost
I______________(never/hear) this song. Who made it?
have never heard
My parents _______________(be) to South America many times.
have been
My uncle ______________(buy) this car many years ago.
bought
Our teacher _________________(work) at our school for more than 40 years.
has worked
_______________(you/find) any interesting facts yesterday?
did you find
We ____________(already/have) three tests this week.
have already had
We ______________(never/travel) in Wales.
have never travelled
My friend ____________(hurt) himself at the competitions last week.
hurt
Last month he _____________(fall) off his bike and ______________(twist) his ankle.
fell; twisted
My grandpa ______________(not+study) Latin when he was at school.
did not study
How many poems ________________(he/write) this month?
has he written
The first man _____________(fly) to the Moon in 1969.
flew
My little sister ______________(draw) many nice pictures today.
has drawn
We ____________(go) shopping yesterday after school.
went
Where _______________(your friend/buy) this dress?
did your friend buy
He ________________(lose) his keys when he was in London.
lost