It was not the first time I'd met him. We _____ (meet) many times before.
had met
I like to get everything done before the guests arrive and relax for a moment in the calm before the _____.
storm
According to the weather _____, tomorrow will be bright and sunny.
forecast
Prepositions
Don't be so pessimistic _____ our environmental campaign; I'm sure we'll succeed.
about
When / the teacher / ask / him/ Paulino / fall / asleep
When the teacher asked him Paulino had fallen asleep.
He called me at eleven in the evening to tell me that he _____ (find) a solution.
had found
Is it OK if I take a _____ check on that drink? I have to work late tonight.
rain
It's been very hot for five days now; we are experiencing a terrible _____.
heatwave
Word Formation
For your personal _____, please do not enter flood areas. (SAVE)
safety
Marcelo / hit / the ball / and / break / the window
Marcelo hit the ball and broke the window
It was a relief to find the documents. I _____ (look) for them all afternoon.
had been looking
You just need a good night's sleep, and then you'll be right as _____ again.
rain
The _____ of the car crash have been taken to a hospital.
casualties
Cutting down forests is a threat _____ wildlife because animals lose their homes.
to
Bryan / use / his phone / for a long time / when / the teacher / tell him to stop
Bryan had been using his phone for a long time when the teacher told him to stop.
He was dismissed, even though, in his opinion, he _____ (not do) anything wrong. 
hadn't done
My letter of protest was just a drop in the _____ to all the problems I experienced.
ocean
I can't stand going into the city centre because of all the car _____.
fumes
Word Formation
Thank goodness you're _____; I was so worried about you. (LIFE)
alive
As soon as / Andrea / see / the message / she / laugh
As soon as Andrea saw the message she laughed
We _____ (work) on this project for a month before we found a fundamental flaw.
had been working
The only _____ on the horizon is the physics exam in June.
cloud
A _____ buried the railway line and it took emergency crews weeks to clear it.
landslide
When the storm suddenly began, we sheltered ____ the rain in a cave.
from
By the time / the teacher / ask / Adriana / finish / the activity
By the time teacher asked Adriana had finished the activity