`1.` Black is so young that he can't take part in the club

`2.` The man was so tired that he could not say a word

`3.` I think that my sister is so busy that she can't help them

`4.` The production is so small that it can't satisfy the need of our city

`5.` He spoke so fast that everyone couldn't understand

`____________________`

`@` S + tobe/ V + too + adj/adv + to_V + O

`=` S + tobe/V + so + adj/adv + that + S + can/could/would/... + not + V_inf + O

`->` quá để làm gì.

Công thức: too...to.. (quá ... đến nỗi không)

S + be + too + ADJ + (for O) + to V 

S + V + too + ADV + (for O) + to V 

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S + be + so + ADJ + that + clause 

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1. Black is so young that he can't take part in the club.

2. The man was so tired that he couldn't say a word.

3. I think that my sister is so busy that she can't help them.

4. The production is so small that it can't satisfy the need of our city. 

5. He spoke so fast that nobody could understand.

`color{orange}{~MiaMB~}`