The heat in the（）air rising from the kitchen and bathroom is recovered by the pumps.

More （）intelligence companies will start to emerge to m...

单项选择题More （）intelligence companies will start to emerge to meet this challenge.

Thanks to a lot of effort and the support of local peop...

单项选择题Thanks to a lot of effort and the support of local people，the business（）.

He said he only wanted one（）of milk –but it was a big o...

单项选择题He said he only wanted one（）of milk –but it was a big one!