Khi nhiệt phân KNO₃ thì thu được:

A. KNO₂ ; NO₂ và O₂

B. K ; NO₂ và O₂

C. K₂O ; NO₂ và O₂

D. KNO₂ và O₂

cám ơn bạn  ////////////////////////////

Where do you go to?

Can you help me?

How far is it from here to school? 

Oh, that is my class?

1: Her favouriter subject is English.

2: Do you live near a marker? It is noisy

1. We should do morning exercises.                                

2. They aren't watching TV now.                                     

3. What are the children often do when it is hot?            

4. My uncle sometimes listens to the radio.                         

5. Yesterday, I went to the restaurant with Lan.        

6. Phuong wasn't return to Hanoi last year.                            

7. What did you do last night? - I did my homework.    

8. We want to buy something for our mum.

My school has forty teachers and six hundred students.

tìm lỗi sai trong câu sau:

she isn't have Music lessons on Monday and Thursday.

have=>having

Nam's mother is a shopkeeper