Volunteer work is a component of informal work. This has become a focus of increased attention by policymakers throughout the world.

Đáp án chính xác: Volunteer work is a component of informal work, which has become a focus of increased attention by policy makers throughout the world.

Học sinh quan sát hình ảnh/ngữ cảnh và chọn đáp án đúng: Volunteer work is a component of informal work, which has become a focus of increased attention by policy makers throughout the world..