cut down，masses of，be caught in，one after another，as a result of，have an effect on，in a nutshell，take in，give out，look through

15.She died her injuries. 16. your homework before handing it in. 17.He didn’t what I read because his mind was on something else. 18.After two hours her patience . 19.Our company was closed. ，we were out of work. 20.China’s improvements are starting to ________________ climate models.

as a result of

Look through

take in

gave out

In a nutshell

have an effect on