She _____ (study) hard for her exam.
(past simple, positive)
studied
She _____ (visit) ten different countries. (positive)
has visited
I have lived here _____ 2021. (point in time)
since
You _____ wear a helmet when riding a bike.
must / have to
I enjoy _____ (read) books.
reading
The ball hit his head _____ he _____ (play) baseball.
when / was playing
They _____ (finish) their homework yet. (negative)
haven't finished
She has studied English _____ five years.
for
You _____ wait, you can leave now. (it is not necessary)
don't have to
I’m interested in _____ (learn) Spanish.
learning
_____ they _____ (develop) any new projects last year?
_____ he _____ (try) sushi before?
— "No, he hasn't."
Has / tried
We have ___________ arrived. (very recently)
just
You _____ smoke here. (it is forbidden)
mustn't
She decided _____ (leave) earlier.
to leave
He _____ (work) at home when the phone rang. (action in progress)
was working
I _____ (live) in this city all my life. (action that started in the past and continues now)
have lived
Has Tom finished his project _____ ?
yet
The grammar exam was hard, but we _____ finish it. (I succeeded in this specific situation)
were able to
_____ (learn) a new language takes a lot of patience. (gerund as subject)
Learning
I _____ (read) a book while my sister _____ (cook) dinner.
(two actions happening at the same time)
was reading / was cooking
My parents _____ (buy) a new car last week. (specific past time)
bought
Ben _____ (experiment) with new dishes sooner than expected. (Use "already")
has already experimented
They _____ (use) the school hall. It was not available. (past modal verb)
couldn't use / weren't able to use
It is important _____ (drink) enough water every day.
to drink