Giải giúp e với ạ, giải nhanh ạ

Các công thức đổi HTHT - QKĐ

Structure 1: 

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

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

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

Structure 2: 

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

--> This/It is the first time + S+ has/have+ V3/ed

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Công thức thì HTHT

(+) S + has/have + V3/ed 

(-) S + has/have + not + V3/ed 

(?) Has/Have + S+ V3/ed?

DHNB: before, since + mốc thời gian, for + khoảng thời gian, yet, already, just,....

Công thức thì QKĐ (V: to be)

(+) S + was/were + ... 

(-) S + was/were + not ... 

(?) Was/Were + S ... ? 

S số ít, I, he, she, it + was

S số nhiều, you, we ,they + were

Công thức thì QKĐ (V: thường)

(+) S + V2/ed 

(-) S + didn't + V1 

(?) Did + S+ V1?

DHNB: ago, last (year, month ...), yesterday, in + năm QK, ...

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EX1:

1. has written 

DHNB: since this morning (HTHT)

2. weren't 

DHNB: last weekend (QKD)

3. Have you still been 

DHNB: still (HTHT)

4. hasn't started 

DHNB: yet (HTHT)

5. did 

DHNB; yesterday (QKD)

6. Have / seen 

DHNB: ever (HTHT)

7. visited 

DHNB: ago (QKD)

8. hasn't seen 

DHNB: for a long time (HTHT)

EX2: 

1. She has lived in Hanoi for 2 years.

2. He has studied English since he was young.

3. This is the first time I have ever eaten this kind of food.

4. She is the most beautiful girl I have ever seen.

5. I have never read such a good novel before. 

`color{orange}{~LeAiFuRuiHuiBao~}`