`1)` What did you agree with Marry about?

`->` Wh- + did + S + V-inf ... ?

`->` agree with sb about sth: đồng ý với ai về điều gì

`2)` What did Iris cancel?

`->` Wh- + did + S + V-inf ... ?

`->` cancel sth: hoãn việc gì

`3)` When did they celebrate their wedding anniveresary?

`->` Wh- + did + S + V-inf ... ?

`->` celebrate sth: ăn mừng cái gì

@magnetic

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, ...

-------------------------------------------------

What: cái gì 

When: khi nào 

-------------------------------------------------

1. What did you agree with Mary?

2. What did Iris cancel? 

3. When did they celebrate their wedding anniversary? 

`color{orange}{~MiaMB~}`