To talk about past experiences we use...
Present Perfect
One of the many substances found in food such as meat, cheese, fish, or eggs, that is necessary for the body to grow and be strong.
Protein
We (empty / not) the bin last week.
didn't empty
Present Perfect
To talk about series of finished actions we use...
Past Simple
The money that is returned to someone who has paid for something that costs less than the amount that they gave.
Change
She (be / not) there an hour ago.
wasn't
Is the usage of the time marker correct?
I saw my best friend this week.
No. I saw my best friend last week.
What action the next sentence represents?
I've known Arina for 7 years.
Unfinished
A product or service that is sold at a lower than usual price.
Special offer
He (lose / not) any game so far.
hasn't lost
Correct the sentence.
I haven't yet seen her.
I haven't seen her yet.
What case of usage of Past Simple is represented here?
I saw an Eifel Tower 2 years ago.
Definite time
To return in other words. (phrasal verb)
To take back
He (leave / just) his house.
has just left
When do we use the time marker "already" at the end of the sentence?
For emphasis.
In what case we can use Present Perfect to talk about finished action?
When we talk about experiences and when past events have a present results.
Someone, who doesn't eat meat and other animal products at all.
A vegan.
I (be) very busy this week.
have been
Correct or incorrect?
I didn't see anyone like her before.
I haven't seen anyone like her before.