17000 bài tập tách từ đề thi thử môn Tiếng Anh có đáp án (Phần 2)

An economic is a time when there is very little economic activity, which causes a lot of unemployment

384/1926

An economic _____________ is a time when there is very little economic activity, which causes a lot of unemployment and poverty.

improvement

depression

development

mission

Giải thích

Chọn B