Bộ câu hỏi: Từ vựng multiple choice bám sát SGK (Buổi 2) (Có đáp án)

Problems with using this technology began to ______ after in-depth research had been conducted.

20/25

Problems with using this technology began to ______ after in-depth research had been conducted.

contain

occur

emerge

categorise

Giải thích

Chọn C