38. I have prepared the project for 2 days

- S + started + to V / V - ing + thời gian + ago

- = S + have / has + V3 / ed + O + for / since + thời gian

39. Why don't we take an online course in budgeting?

- Why don't we + V - inf?: Tại sao chúng ta không làm gì ( Gợi ý )

40. You shouldn't go out with him

- Shouldn't + V - inf: Không nên làm gì

38. I have prepared the project for 2 days.

S + has/have + V3/ed + for/since + time 

--> S + started / began + to V / Ving 

--> It is / has been + time + since + S+ V2/ed 

39. Why don't we take an online course in budgeting? 

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

an + N số ít (đứng đầu là các nguyên âm UEOAI)

40. You shouldn't go out with him.

shouldn't + V1: không nên làm gì 

go with sb: đi với ai 

`color{orange}{~MiaMB~}`