1.sitting/talking

DHNB:now

2.running

DHNB:at the moment

3.riding

DHNB:now

4.aren't working

DHNB:now

5.swimming

DHNB:at the moment

Vì các câu trên đều là thì HTTD:

+)

I+am+Ving

You/we/they+are+Ving

He/she/it+is+Ving

-)

I+am+not+Ving

You/we/they+are+not+Ving

He/she/it+is+not+Ving

$#Cam$

` -> ` Cấu trúc thì HTTD

` -> ` S + be + V-ing

` -> ` S + be not + V-ing

` -> ` Be + S + V-ing

` 1` is sitting - are talking

` -> ` DHNB : now

` 2 ` : are running

` -> ` DHNB : at the moment

` 3 ` : is riding

` -> ` DHNB : now

` 4 ` : aren't working

` -> ` DHNB : right now

` 5 ` : is swimming

` -> ` DHNB : at the moment