We have been drawing the picture for four hours

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Choose the best sentence that can be made from the cues given.

We have been drawing the picture for four hours.

We started drawing the picture four hours ago.

We didn't start drawing the picture until four.

We have four hours to draw the picture.

Drawing the picture will be done in four hours.

Giải thích

Cấu trúc: S + have/ has + been + V-ing + for + khoảng thời gian

=>S + started + V-ing + khoảng thời gian + ago

=>We started drawing the picture four hours ago.

Tạm dịch: Chúng tôi đã vẽ bức tranh trong bốn giờ.

Đáp án cần chọn là: A