Present Perfect or Past Simple
you / ever / buy / tickets online?
Have you ever bought tickets online?
We booked our hoiliday online a month ago.
Right
They / play football / two hours.
They have been playing football for two hours.
discourage or stop you from wanting to do sth
put off
I / already / save / nearly $3000.
I have already saved nearly $3000.
When have you bought that jacket?
Wrong
When did you buy that jacket?
Sam / not study / enough recently.
Sam hasn't studied enough recently.
get information about sth
find out
Tom / never / use / the tablet.
Tom has never used the tabket.
Did your sister buy a car yet?
Wrong
Has your sister bought a car yet?
It / snow / 5 o'clock this morning.
It has been snowing since 5 o'clock this morning.
indicate or draw attention to
point out
They / win / the prize last month.
They won the prize last month.
Have you seen the Batman film?
Right
It / not rain / three months.
It hasn't rained for three months.
examine or investigate sth
look into
My brother / not find / a new job yet.
My brother hasn't found a new job yet.
How much has your camera cost?
Wrong
How much did your camera cost?
They / be married / 25 years.
They have been married for 25 years.
successfully deal with a problem or situation
sort out