[مستر محمد صلاح]

82 ……………………is a chemical used to kill unwanted plant.
a- An insecticide b- A periscide c- A herbicide d- A disinfectant
9. London was one of the largest cities in the world, but the population is now falling. (The population of London)
10.A job was advertised. A lot of people applied for it. A few of them had the necessary qualifications. (Who)