Present perfect exercise: choose the natural form in context
What do you remember about this?
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Choose the present perfect for a past experience, a recent result, a change, or a situation in an unfinished time period when it connects to now. Use have with I, you, we, and they; use has with he, she, it, and singular nouns. Add the past participle after have or has.
Nora has misplaced her keys, so she cannot open the door.