Commonly confused words

My __ looked at my car the other day and said that I should get a new one TECHNICIAN / MECHANIC

My car has a __ that checks whether everyone is wearing a seatbelt DEVICE/APPLIANCE

Do you think someone will __ a flying car one day? INVENT/DISCOVER

I am sure that astronomers will __ much more about distant galaxies in the near future INVENT/DISCOVER

To operate the coffee __ just put your money in here and press the button MACHINE/ENGINE

all the __ equipment in this room needs to be replaced ELECTRIC/ELECTRICAL

A vacuum cleaner is a(n) __ which almost every household possesses DEVICE/APPLIANCE

My father works as a __ in the Microbiology unit of the hospital TECHNICIAN / MECHANIC

This car has a very powerful __ so you'll have to drive it carefully MACHINE/ENGINE

Can we find someone to __ the TV? It´s not working properly CORRECT/FIX

I´ve noticed a number of errors in this report. Can you __ them please?  CORRECT/FIX

We need to buy a new __ cooker as soon as possible ELECTRIC/ELECTRICAL