`2` The Math problem was so difficult that the students couldn't solve it.

`-` S + be + so + adj + that + S + V: thật ... đến nỗi mà ...

`3` If I knew my colleagues well, I could join their conversations.

`-` Câu điều kiện loại `2`:

`->` If + S + V2/ed, S + would/could/might/... + V

`=>` Diễn tả hành động không thể xảy ra ở hiện tại hoặc tương lai.

`4` It takes my father an hour to exercise every afternoon.

`-` It takes + O + thời gian + to V: mất bao lâu làm gì

`5` The red dress is cheaper than the blue one.

`-` So sánh hơn: S1 + be + adj-er/more adj + than + S2

`-` expensive >< cheap: đắt >< rẻ

`6` I have never worn Japanese costumes before.

`-` S + have/has + never + V3/ed + before: chưa từng làm gì trước kia

`7` You don't need to be close to all your classmates.

`-` S + need + to V: cần làm gì

`8` Why don't we leave work earlier and go to the cinema?

`-` Why don't we + V?: gợi ý làm gì

`9` Mike asked Nick how he was going to travel to the party that night.

`-` Câu tường thuật với wh-words:

`->` S + asked + O + wh + S + V(lùi thì)

`-` you `->` he

`-` Tương lai gần `->` was/were + going + to V

`-` tonight `->` that night

`10` Despite having discussed the issue for days, we haven't concluded yet.

`-` Despite + N/Ving, S + V: Mặc dù

2. The Math problem was so difficult that the students couldn't solve it.

S + be + so + ADJ + that + clause: quá ... đến nỗi 

3. If I knew my colleagues well, I could join their conversations.

if 2: If + QKĐ, S+ would / could  +V1 

4. It takes my father an hour to exercise every afternoon.

It takes + O + time + to V: mất bao nhiêu thời gian để làm gì 

5. The red dress is cheaper than the blue one.

S + be+  ADJ + er + than + O : ss hơn 

6. I have never worn Japanese costumes before.

S + has/have + not/never + V3/ed+ ... before

7. You don't need to be close to all your classmates.

not need to + V1: không cần

8. Why don't we leave work earlier and go to the cinema?

Why don't we/ you + V1? đưa ra ý kiến, đề nghị 

9. Mike asked Nick how he was going to travel to the party that night.

S + asked + O + WH + S+ V (lùi thì)

HTTD --> QKTD

10. Despite having discussed the issue for days, we haven't concluded yet.

Despite + N / Np / Ving, clause : mặc dù 

`color{orange}{~MiaMB~}`