giúp em vs ạ

There is / was 

(+) There is / was + a/an + N số ít

(-) There isn’t /wasn't + a/an + N số ít

(?) Is/ Was there + a/an + N số ít?

There are/ were

(+) There are /were + số lượng  + N số nhiều

(-) There aren’t / weren't + any + N số nhiều

(?) Are / Were there + any + N số nhiều?

→ Yes, there are

→ No, there aren’t

------------------------------------------------------------

1. There is

2. There were

3. There was

4. There isn't

5. There were 

6. There isn't

7. There aren't

8. There was

9. There weren't 

10. There was 

`color{orange}{~LeAiFuRuiHuiBao~}`