5. We have to take our own rubbish to the _______________.

   A. environment                 B. garbage dump               C. refreshment                   D. pollution

6. We are looking for a professionally _______________ home security system.

   A. install                            B. installation                    C. installing                       D. installed

ĐỀ THI THỬ SỐ 49 KỲ THI TUYỂN SINH VÀO LỚP 10