1. The knife is so dull that we can't use it ( so ... that ..)

- It is such a dull knife that we can't use it ( such... that...)

- The knife is too dull to use. ( too...to..)

- The knife isn't sharp enough for us to use.(enough..to)

2. He is so poor that he can't help me with the money. ( so ... that)

- Such is his poverty that he can't help me with the money ( poverty : sự nghèo khó)

- He is too poor to help me with the money (too.. to)

- He is not rich enough to help me with the money ( enough...to)

I) Sử dụng cấu trúc "So.....that", "such.......that", "too......to", "enough.....to" để viết lại câu.

1. The knife is dull. We can't use it.

=> The knife is so dull that we can't use it (Con dao nó quá cùn, nên chúng ta không thể sử dụng nó)

=> This is such a dull knife that we can't use it (Con dao nó quá cùn, nên chúng ta không thể sử dụng nó)

=> This knife is too dull to use it (con dao quá cùn để sử dụng)

=> This knife is not sharp enough for us to use it (Con dao này không đủ sắc để chúng ta sử dụng)

2. He is poor. He can't help me with the money.

=>He is so poor that he can't help me with the money (anh ấy nghèo đến nỗi không thể giúp tôi về chuyện tiền bạc)

=>  He is such a poor person that he can't help me with the money (anh ấy nghèo đến nỗi không thể giúp tôi về chuyện tiền bạc)

=> He is too poor to help me with the money  (anh ấy nghèo đến nỗi không thể giúp tôi về chuyện tiền bạc)

=> he is not rich enough to help me with the money( anh ấy không đủ giàu để giúp tôi về chuyện tienf bạc)