1. we always go to school on time  ( ht đơn )

      s+v(s/es)+ ... 

2. how many hours does he often works a week ?

how many + dt số nhiều + ...: bao nhiêu .......

3. american students don't often wear unifrom at schoool.

   ht đơn thể phủ định : s+ don't / doesn't + v +... 

4. câu 4 mik ko nhìn rõ 

5. I like math because it is interesting .

tôi thik toán vì nó thú vị 

6. what subject does tom like best? 

môn hok tom thik nhất là j?

7. we want to work with you 

s+ want +t o v : muốn làm j 

8. excuse me ! is there a post office near hear?

9. mai is interested in doing experiments.

s+ tobe + interested in + ving .: thikk lam j  

`1.` We always go to school on time  

`->` Dấu hiệu: always

`->` HTĐ

`->` S + V(s,es) 

`2.` How many hours does he often works a week?

`->` How many + danh từ đếm được số nhiều + .... (are there)?

`3.` American students don't often wear uniforms at school.

`->` Dấu hiệu: often

`->` HTĐ

`->` S + do/does + not + V + ... 

`5.` I like math because it is interesting.

`->` Sắp xếp sao cho hợp nghĩa 

`6.` What subject does tom like best? 

`->` What + trợ động từ + S + ...? 

`7.` We want to work with you 

`->` S + want +to V

`8.` Excuse me! Is there a post office near here?

`->` Sắp xếp sao cho hợp nhĩa 

`9.` Mai is interested in doing experiments.

`->` S + tobe + interested in + V_ing