1. He is short. He can’t stick the picture above the window.
⇒ He isn't tall enough to stick the picture above the window
⇒ Cấu trúc: S + tobe (not) + adj + enough + to + V(inf): đủ để lm j
2, That is an interesting book !
⇒ What an interesting book!
⇒ Cấu trúc: WHAT + a/ an + adj + danh từ đếm được
3. A letter to America is 9500 dong.
⇒ It costs 9500 dong to send a letter to America
⇒ Cấu trúc: It + costs + số tiền + to + V(inf)
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