c - a - c - b

met
were going
was going
had
were waiting
was going
shouted
claimed
was carrying
noticed
found
was

was cycling
stepped
was going
managed 
didn't hit
apologized
explained
was thinking
didn't pay

were you doing

were you driving - happened

saw - was trying

was walking - heard - was following - started

dropped - was doing - didn’t break

was opening - blew

I promise
I insist
I apologise
I recommend

you 
anyone
me
them
they
his
hers
their
She and I
Our
we
it
its
another
the other
others
other
another
The others
one
ones

another
The others

were singing
Were - working
was not watching
was chatting
was teaching
was typing
were doing
were shouting

do you do

are you employed

is used

are you required

Are you allowed

are you paid

to have

write

Cooking

playing

organize

stay

Is someone playing

go

played

read

me if I were working hard for the project
you worry, the harder it will be to fall asleep
made Melinda heavily stressed
were taught how to make a living
I should go out for a walk
why William hadn't phoned her for such a long time
were you, I would take more exercise or play sports regularly
in getting the job although she is a fresh graduate
great efforts, he still failed to control his anger
you rest yourself, you really will get sick or become exhausted

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