There was a princess ___ lived in a castle.
who/ that
She has ____________ (work) all morning
He is not allowed _____ (do) this
to do
I think you_____wear that dress. It doesn't suit you.
shouldn't
Thanks for the chocolates ___ you sent me.
which/ that
Your voice sounds strange. Have you ________(drink)?
been drinking
He kept ____ (talk) even when everyone left
talking
We _______ use our seatbelts
must
I have a friend ______is a doctor
who/ that
I have __________ (know) her for 10 years.
known
They go _____ (fish) every weekend
fishing
_____ you help me please?
can/ could
That's the model _____ I bought
which/ that
has had
I have decided ______ (buy) a new boat
to buy
Are you sure that's him.
Not really, I _____ be wrong.
might/ may
That's the city ___ we met.
where
I ________ (wait) for an opportunity like this my whole life.
have been waiting
I want ______(visit) that place
to visit
This ______ be the place. It looks exactly like the picture.
must