Modals
You __________ wear a helmet when riding a motorcycle; it's the law.
must
If you heat water to 100°C, it __________ (boil).
boils
She enjoys __________ (read) mystery novels in her free time.
reading
The teacher __________ helped me yesterday is very kind.
who / that
Look! The dog __________ (run) across the street.
is running
You __________ talk to your teacher if you're having problems with the assignment.
should
If it rains tomorrow, we __________ (cancel) the football match.
will cancel
They decided __________ (travel) to Italy next summer.
to travel
This is the book __________ I told you about.
that / which
I __________ (never see) such a beautiful sunset before.
have never seen
The lights are off and nobody is answering the phone. They __________ be at home.
might / may
If I __________ (be) you, I would apologise to her.
were
He apologised for __________ (arrive) late to the meeting.
arriving
That is the student __________ brother won the science competition.
whose
While we __________ (walk) through the park, it suddenly started to rain.
were walking
She studied all night for the exam, so she __________ passed it.
must have passed
If they __________ (leave) earlier, they wouldn’t have missed the train.
had left
I stopped __________ (talk) to listen to the announcement.
talking
This is the restaurant __________ we had dinner last weekend.
where
By the time we arrived at the cinema, the film __________ (already start).
had already started
We arrived at the station just as the train was leaving. If we had left earlier, we __________ caught it.
could have caught
If she had accepted the job in London, she __________ (live) there now.
would be living / would live
She was very happy __________ (hear) the good news.
to hear
My cousin, __________ lives in Canada, is coming to visit us this summer.
who
This time tomorrow, we __________ (fly) to New York.
will be flying