1 . Greenhouse gas emissions __________ (release) by coal and natural gas plants when generating electricity to power those air-conditioners would nearly double, from 1.25 billion tons in 2016 to 2.28 billion tons in 2050. Those emissions would contribute to ________ (accelerate) global warming, _________ could further heighten the demand for air-conditioning. (所给词的适当形式填空)

2 . Sometimes devices fail because a good design is constructed with low quality materials incompetently ________ (apply). (所给词的适当形式填空)

3 . There is a wide range _________ books in the bookshop, whose prices range from 1 dollar _________ 20 dollars. You can choose books _________ (range) along the wall next to the door according to the writers' names. (用适当的词填空)（所给词的适当形式填空）

4 . After reading an article________ (entitle) “Cigarette Smoking and Your Health”, I lit a cigarette to calm my nerves. （所给词的适当形式填空）

5 . From the school name ________(mark) on the package, we guessed that it might belong to a student of our school. (所给词的适当形式填空）