... you are writing, be careful with spelling and grammar.
I had to let the coffee cool ... I could drink it.
before
After I (return) from the journey, I felt pain in my back.
had returned
_____ he meets his asthmatic brother, Tom (light) a big, stinky cigar (just to annoy his bro).
When / lights
When you (submit) the report, you may go home.
submit/have submitted
... the rain stops, let's take a stroll to a local park.
when/after
... paying for lunch, I went straight to the drug store to buy stomach medicine.
After
I had checked on the table settings before I (welcome) the guests.
welcomed
There is a tradition - when the plane (land), the passengers (clap) as a sign of gratitude to the pilot.
lands/clap
After you have (send) the letter tomorrow, please see that we are (inform) immediately.
sent /will informed
... I was cleaning the vacuum cleaner, I found my wife's necklace.
while/as/when
... as I received the letter, I opened it.
as soon
When Victor (train), he got an injury.
was training
The Tadpole terrorist gang (release) the hostages when they were (bring) 60 kilos of pure peanut butter.
release / brought
Before we (have) dinner today, we (complete) the task.
have/will complete
... my vacation, I made up my mind to learn the French language.
During
Lesley moved to Canada 2 years ago. He had never lived there ...
before
Frank (check) the essays for 2 hours when there was a power cut.
had been checking
Before the President (arrive) at the airport tomorrow, the security officers (clear) the airport of any suspected liberals.
arrives, will clear
She (finish) her report by the time her manager (ask) for it.
will have finished/ asks
... had Nick sat down to have a rest, when the boss called him.
Hardly
... had we stepped on the floor than we heard the floor crack.
No sooner
He (work) as an interpreter for 20 years. Now he is retired.
worked
I don't know when I (come back) from the party.
will come back
Martin (not know) when he (get) the promotion that he's so long waited for.*
*Just between you, me, and the Internet, there's no promotion coming for Martin.... ever. He shouldn't have spiked the boss's coffee with salt.
does not know/he will get