`1.` are playing

- Thì HTTD - DHNB: at the moment

`2.` reads

- Thì HTD - DHNB: usually

`3.` am not taking

- Thì HTTD - DHNB: right now

`4.` treats

- Thì HTD - DHNB: always

`5.` let

- Thì HTD - DHNB: usually

`6.` are running

- thì HTTD - DHNB: right now 

`7.` doesn't like

- Thì HTD - Diễn tả một sở thích

`8.` isn't trying

- Thì HTTD - DHNB: right now

`9.` is snowing

- Thì HTTD - DHNB: at the moment

`10.` is making

- Thì HTTD - DHNB: now

`11.` doesn't study

- Thì HTD - Diễn tả một sự thật

`12.` is sitting

- Thì HTTD - DHNB: Look!

`1.` are playing

`2.` reads

`3.` am not taking ( dạng đặc biệt nên có thể dùng "aren't i" nhưng hiếm khi được sử dụng )

`4.` treats

`5.` let

`6.` are running

`7.` doesn't like

`8.` isn't trying

`9.` is snowing

`10.` is making

`11.` doesn't study

`12.` is sitting

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

`-` Đề bài y/c chia theo thì HTĐ hoặc HTTD

`-` Cấu trúc HTĐ: S + Vs/es + ...

`-` Dấu hiệu nhận biết như: always/usually/ ......

`-` Cấu trúc HTTD: S + am/is/are + V_ing + ...

`-` Dấu hiệu: Now, today/at the moment/ right now/....