` Answer : `
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` @ ` ` text\{Đặt câu:} `

` bb1. ` friend(n) : bạn bè

` -> ` Last Sunday, my best friend and I went to school to clean the library.

` - DHNB : ` Last Sunday

` -> ` Thì QKĐ : S + V2/-ed + O

` -> ` Hành động đã xảy ra trong QK

` bb2. ` friendly(adj) : thân thiện

` -> ` We should use environmentally friendly energy.

` - ` S + Should + V-inf + O

` - ` Adj + N

` -> ` friendly energy : năng lượng thân thiện

` bb3. ` friendliness(n) : sự thân thiện

` -> ` Her friendliness towards everyone helps her make friends easily.

` - ` Tính từ sở hữu `+` N

` - ` help sb do sth : giúp ai đó làm gì đó

` - ` V + Adv

` bb4. ` friendship(n) : tình bạn

` -> ` Our friendship has been strong for a long time, although during that journey, we both had to go through many challenges and difficulties, our relationship has always been mended.

` - ` Tính từ sở hữu `+` N

` - ` CT Thì HTHT : S + have/ has + been + O

` - ` for a long time : trong thời gian dài

` - ` During + N

` @ ` CT Although : 
Although + S + V , S + V
S + V + although + S + V
S + V. Although + S + V
` -> ` Nhấn mạnh sự tương phản và đối lập giữa hai vế câu, ý nghĩa muốn truyền tải.

` - ` Had to + V-inf

` - ` Many + N số nhiều

` bb5. ` noise(n) : tiếng ồn

` -> ` The noise of the construction site near my house woke the baby up.

` - ` The N of (the) N

` - ` wake sb up : đánh thức ai đó dậy

` bb6. ` noisy(adj) : ồn ào, huyên náo

` -> ` The sound of traffic is so noisy

` - ` The N of (the) N

` - ` Tobe + Adj

` bb7. ` noisily(adv) : một cách ồn ào

` -> ` The crowd cheered noisily when the team scored a goal

` - ` The + N

` - ` V + Adv

` - ` S + V when S + V

` - ` Thì QKĐ : S + V2/-ed + O

` #Pwyyx# `