It was suggested that your father gave up smoking for the sake himself. A. himself. B. smoking C. gave up D. was suggested

Đáp án C

Sửa “gave up” => (should) give up.
Câu giả định: S1 + suggest + that S2 (should) V-inf O.
Ngoài “suggest” ra, còn có: advise, demand, urge, request, command, order, decree, etc.
Dịch: Bố tôi được khuyên rằng ông nên từ bỏ thuốc lá.