Peter was playing football. His sister was making some paper flowers at that time.

40/50

After Peter was playing football, his sister was making some paper flowers.

While Peter was playing football, his sister was making some paper flowers.

Peter was playing football until his sister was making some paper flowers.

Before Peter was playing football, his sister was making some paper flowers.

Giải thích

Đáp án đúng: B

While + S + V(quá khứ tiếp diễn), S + V(quá khứ tiếp diễn) => cấu trúc diễn tả hai hành động xảy ra song song trong quá khứ.

Hướng dẫn dịch: Trong khi Peter đang chơi bóng đá, chị của anh ấy đang làm một số hoa giấy.