4 Fill in the blanks with the words given below . Change the form where necessary . Each word can be used only once . boiler /dealer/ examiner /injurious /laborious /locker /starter/ thunderous /1. If you live in a cold climate and need to use a ( n ) _ to heat your whole house this product is the better choice .2. It is always a good idea to buy your car from a licensed car _ .3. The storm made the race even more challenging so only one - third of all the _ finished the race .4. Keeping the garden tidy all year round can be a ( n ) ___task, but Betty enjoys it .5 Driving test _ will stop the driving test if they feel you are a danger on the road .6 Use your computer wisely because too much screen time is _ to your eyes .7 His inspiring lecture on how to save the earth was greeted with ____ clapping and cheers .8 Don't worry, there are _ in the mall where we could keep our luggage while we go shopping.