Level
3 chapter: 4 Present Perfect vs Past (2).
Complete the sentences. Click on [?] to see if contractions can be used. |
The present perfect is often used with words like ever, never, always, often, yet... because these words refer to an indefinite period up to the present.
The simple past is used for an action at a fixed moment in the past and thus with terms like yesterday, last week, last month, in 2007...
Contractions like 've, 's, haven't, hasn't are optional.
Click on [?] for help.