IV. Write the following sentences in indirect speech using the Past Perfect) 1. Roger said: "My uncle has been here more than once" 2. Alice asked me: "Did you spend much time there?" 3. Ben asked me: "When did you join our circle?" 4. She said: "Our group has worked in the lab today." 5. Bill said: "I remember she was good at singing." 6. The mother asked her son: "Why have you spent so much money on sweets?" 7. Fanny asked her friend: "Where did you go during your vacation?"​

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