Đáp án + Giải thích bước giải:

* Thì HTTD: diễn tả hành động đang xảy ra ngay tại thời điểm nói

`-` Công thức:

(+) S + be + V-ing

(-) S + be + not + V-ing

(?) Be + S + V-ing?

`-` Dấu hiệu: now, at the moment,...

* `Ví` `dụ:`

`1.` We are playing chess now

`2.` I am riding my bike to school at the moment

`3.` They are chatting on Zalo

`4.` I am reading my favorite book

`5.` Is she laughing?

`6.` My sister is cleaning the floor

`7.` We are visiting the museum in the afternoon

`8.` They are singing karaoke in the next room

`9.` The weather is getting cold

`10.` He is traveling around the world

1.She is looking for a good book .

2.Christmas is coming 

3.Your son is growing quickly.

4.He is always coming to school late.

5.She is crying.

6.The cat is playing with the ball.

7.I am playing football with my family.

8.What are you doing tomorrow?

9.Look!Someone is watching us.

10.Lan is eating in the canteen with Mai.

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