на кануне оценка я понимаю только но

1) Have been boiling

2)has been waiting

3)has been sending

4) have been trying

5) have been learning

6)has been drilling

7) has been playing

8)have been listening

9) hasn't been taking

10)have been saving

Про лето: Do I like summer season because in summer you can sunbathe and swim in the summer hot nice
про осень: I like the autumn season because autumn yellow and green leaves turn red in the trees and just very different colors, burgundy, mixed colors
про зиму: Like the winter season because the winter you can go sledding snowman throwing snowballs sculpt and also very happy holiday this new year.
про весну: I like spring because spring training days will soon come to an end and summer vacation and still a lot of holidays, such as the feast-day of victory 9maya

I have received the enquiry from Green & Co  (this week.just, this morning ) эти три варианта pr. Perfect I have just received the enquiry from Green & Co
I received the enquiry from Green and Co (yesterday, two days ago, last month) эти три варианта past simple 

We visited some places of interest yesterday, a week ago. 
We have visited some places of interest today,
We have already visited some places of interest
 
They were in the office yesterday
they have been in the office lately, this week, 
they have just been in the office