精选优质文档-倾情为你奉上2017年人教版八年级下英语期末考试试题 一、单项选择:( ) 21. Although he isnt adult, he should understand importance of protecting the environment.A.a;an B.an;a C.an;the D.an;an( ) 22. With the of science tecnology,our country is becoming stronger and stronger.A. achievement B.amusement C.excitement D.development( ) 23. careful you are in the exam, mistakes youll make. A. The more