Do they have___ air conditioners to cool the rooms in summer?

I remembered that the air conditioners ( ) turned off before I left home.

– Make sure you turn off the air conditioners before going out. – ______.

– Make sure you turn off the air conditioners before going out.– ______. A: Heard it B: Made it C: Forgot it D: Got it

Do they have ____________ air-conditioners for cooling the rooms in summer?

Low carbon life is a green lifestyle that In order to meet the standard of low carbon lifestyle, it’s better to A: set the temperature of air-conditioners to 26 degrees. B: avoid using air-conditioning in winter as heating. C: buy air-conditioners which signed "efficiency". D: select air-conditioners the environment experts recommend.

Do they have many a air-conditioners for cooling the rooms in summer?

The study rooms are NOT equipped with ______. A: air-conditioners B: closed-circuit TV C: projectors D: tape-recorders

There’s a feeling of unrest nowadays. A: in the air B: on the air C: by air D: in air

4. From the control tower, air traffic controllers coordinate aircraft movement both ________ and on the ground. A: on the air B: in the air C: at the air D: of the air