`1`. is cooking - is cleaning

`-` At present `->` chia HTTD

`@` Cấu trúc Hiện tại tiếp diễn:

(`+`) S + am/is/are + V-ing

`-` Vế trước chia HTTD `->` Vế sau cũng chia HTTD

`2`. gave

`-` Three months ago `->` chia QKĐ

`@` Cấu trúc QKĐ:

(`+`) S + V2/ed + O

`3`. bought 

`-` DHNB: Last week `->` chia QKĐ

`@` Cấu trúc QKĐ:

(`+`) S + V2/ed + O

`4`. lived

`-` Three years ago `->` QKĐ

`@` Cấu trúc QKĐ:

(`+`) S + V2/ed + O

`5`. am talking

`-` At the moment `->` HTTD

`@` Cấu trúc Hiện tại tiếp diễn:

(`+`) S + am/is/are + V-ing

`6`. drives

`-` Every day `->` HTĐ

`@` Cấu trúc HTĐ:

(`+`) S + V(s/es) + O

1. is cooking / is cleaning

$\text{+)}$ DHNB : At present $\rightarrow$ HTTD

2. gave

$\text{+)}$ DHNB : Three months ago $\rightarrow$ QKĐ.

3. bought

$\text{+)}$ DHNB : last week $\rightarrow$ QKĐ

 4. lived

$\text{+)}$ DHNB : three months ago $\rightarrow$ QKĐ.

5. am talking

$\text{+)}$ DHNB : at the moment $\rightarrow$ HTTD

6. drives

$\text{+)}$ DHNB : Every day $\rightarrow$ HTĐ.