Answer + explanation : 

1 . doesn't walk / cycles .

 - ) S + do/does + not + V ....

 + ) S + V (s, es).....

 DHNB : '' every day / Sometimes '' thì HTĐ  

2 . is / playing .

 ? ) W + tobe + S + V-ing...?

DHNB : '' look '' thì HTTD 

3 . Do / study .

 ? ) Do/Does + S + V.....?

DHNB : '' every afternoon '' thì HTĐ

4 . am writing .

 +) S + am/is/are + V-ing......

DHNB : ''now'' thì HTTD 

5 . isn't doing / is reading .

 - ) S + am/is/are + not + V-ing....

 +) S + am/is/are + V-ing....

DHNB : '' now '' thì HTTD .

$#Bbi Yangho .$

$\text{#Chúc em học tốt nhé .}$

1. My best friend doesn't walk to school every day. Sometimes she cycles.
2. Look! What is he playing?
3. Do your friends study in the library every afternoon?
4. I am writing an email to my friend now.
5. He isn't doing his homework now. He reads

Cho mình xin 5 sao và cảm ơn nhé!