IV.Fill in the blanks with the present perfect.
1. I.................(to forget) my book at home.
2. He..................(to lose)his keys.
3.She.....................(not/see)her son for a long time.
4. I.................(not/revise) my lesson.
5.Thomas.....................(to work) very hard.
6.The child.....................(to break) a cup.
7. Fati...................(not/call) me since Wednesday.
8. The children.....................(not/eat) anything.
9.Emilio..................(not/speak) to the boss.
10. They....................(to go) to the cinema.
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