Usage of air conditioners

[Hirsch]

English Grammar Tests, Elementary Level

ESL/EFL Test #117 "Weather Test (4)", question 2

In the hot summer months, people usually turn on their ......... to keep cool in the high temperatures.

(a) air conditioners
(b) furnaces
(c) ovens

English Grammar Tests, Elementary Level

ESL/EFL Test #117 "Weather Test (4)", answer 2

In the hot summer months, people usually turn on their air conditioners to keep cool in the high temperatures.

Correct answer: (a) air conditioners
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Why?

Hirsch

[Mister Micawber]

.
Only air conditioners are cooling appliances.
.
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Native English teacher at Mister Micawber's