Cmr các số sau là số chính phương 

a, A=111...1(n số 1) 222...2(n số 2)5

b,B=111...1(n số 1) 333..3(n số 3) + 222...2(n số 2) 38

Cần gấp ạ:(

Châu Phi được bao bọc bởi biển và những đại dương nào ?

Decide if each sentence is right or wrong and corrct the wrong sentences

1. It was a terrible film and I was bored from start to finish

2. I'm very exciting because I'm going to Florida tomorrow

3. Are you surprised or were you expected her news?

4. Lisa is reading a very intersted book at the moment

5. I've had a very tiring day at work today and I want to go the bed

6. Most people were surprising that she won the prize

7. I'm boring. Let's go out for drink somewhere

8. Visit our excited new shop!

9. His speech wasvery long and very boring

10. Jerry was totally convinced by Alice's explanation

HELPP ME!!