Perhaps the most (SKILL) of them were the Polynesians.

1 a

2 an

3 a

4 an

5 a

1)now my friend lives in moscow

2)as a rule, he spends his holidays at the seaside.

3)i am very busy on sunday.

4)he often helps me when i need his help.

5)she is very glad to see me. 

6) здесь кажется что-то пропущено

they will have planted trees in their garden by 7 o'clock tomorrow в future in the past будетиметьтакойвид: they would have planted trees in their garden by 7 o'clock tomorrow. соответственно вопросы будут следующие:

would  they have planted trees in their garden by 7 o'clock tomorrow?

would  they have planted trees or flowers in their garden by 7 o'clock tomorrow?

who would  have planted trees in their garden by 7 o'clock tomorrow?

what would  they have planted in their garden by 7 o'clock tomorrow?

where would  they have planted trees by 7 o'clock tomorrow?

when would  they have planted trees in their garden?

what would  they have done in their garden by 7 o'clock tomorrow?

they would have planted trees in their garden by 7 o'clock tomorrow, wouldn’t they?  

1) i have put the dot in the corner of sheet of paper.

2)i had put the dot in solution of this question.

1)i have dotted a lection.

2)i has dotted a word in the sentence.