Mr．a(chǎn)nd Mrs．White were worried．That was already December，but they 56．

That→It

That→It

also didn't have heat in their flat．Every time they called the manager of the 57．

also→still

also→still

building，Mr．Grant，who promised to turn on the heat，but he never did．58．

who→he

who→he

Last Monday Mrs．White went to Mr．Grants office during her lunch 59．

Grants→Grant's

Grants→Grant's

break．She told him it was so cold in the flat that her two child were 60．

child→children

child→children

getting sick．She told him they always paid their rent in time and that it 61．

in→on

in→on

was his job to fix the heat in their flat since it got cold．62．

since→when

since→when

Mr．Grant listened polite to the lady．He told her he had a lot of problems 63．

polite→politely

polite→politely

in the building and he couldn't do everything himself，so he let her patient．64．

patient前加be

patient前加be

At this，Mrs．White left his office angrily and took the taxi to the town right 65．

the→a

the→a

to the mayor's office．Later that same day，there was heat!