1. drinks

2. aren't 

3. live/ don't live

4. teaches

5. aren't / are

6. catch

7. doesn't catch 

8. is/ isn't / is

9. gives/ is 

10. doesn't like/ likes

11. is/ isn't /is

12. lives

13. does he do

14. doesn't live

15. aren't 

16. walk

17. play

18. puts

-------

Thì hiện tại đơn

(+) S+ is/am/are 

      S+ V(s/es)

(-) S+ is/am/are + not...

     S+ don't/ doesn't + V

(?) Is/ Am/ Are+ S+...
      Do/ Does + S+ V..

Ex `5` :

`1` . drinks

`2` . aren't

`3` . live - don't live

`4` . teaches

`5` . aren't - are

`6` . catch

`7` . doesn't catch

`8` . is - isn't - is

`9` . gives - is

`10` . doesn't like-likes

`11` . is - isn't -is

`12` . lives

`13` . does he do

`14` . doesn't live

`15` . aren't

`16` . walk

`17` . play

`18` . puts