Air (20) ________ is caused of ill-health in human beings. In a lot of countries, there are laws limiting the
amount of smoke which factories can (21) ________ although there is not enough information on the effects
of smoke on the atmosphere. Doctors have proved that air pollution causes lung diseases. The gases from the
exhausts of cars also (22) ________ air pollution in most cities. The lead in petrol produces a poisonous gas, which is often (23 ________ in busy streets circled by buildings. Children who live in areas where there is a
lot of lead in the atmosphere cannot think as quickly as other children, and are clumsy when they use their
hands. 20. A. pollute B. pollution C. polluted D. polluting
21. A. to produce B. produced C. producing D. produce
22. A. increased B. increasing C. to increase D. increase
23. A. collected B. collect C. collecting D. collects
VOTE 5 SAO +CTLHN NHƯNG GIẢI THÍCH Ạ
Air (20) ________ is caused of ill-health in human beings. In a lot of countries, there are laws limiting the amount of smoke which factories can (21)
By Genesis
20.B. pollution ( cụm air pollution là ô nhiễm không khí)
21.D. produce (sau can động từ ở dạng nguyên thể)
22. A. increased (Bởi vì câu trước sử dụng quá khứ – proved – mà câu tiếp có sử dụng also bởi vậy cũng phải ở thì quá khứ)
23.D. collects (often là nghĩ ngay đến thì Hiện Tại Đơn nha bạn )
20 B→ô nhiễm không khí( cụm từ)
21 D→sản xuất( sau” can” giữ nguyên →chọn D)
22 A→gia tăng( “doctors have proved” là quá khứ,có chữ also:cũng thế→A quá khứ )
23 D→thu thập,nhận thấy(sau often →hiện tại đơn)