We were very busy at work today. We are not as busy as that everyday. => We were busy at work today than that every day Đúng ko?

`->` Sai

`-` Sửa : We were busier at work today than we usually are.

`-` busy `->` tính từ ngắn `->` chuyển y thành i `->` thêm er

`-` So sánh hơn : S + be + adj-er/more adj + than + S2 + V(do/be)

`-` Hôm nay chúng tôi bận hơn ở chỗ làm so với bình thường.