Use PRESENT PERFECT TENSE after BECAUSE

1) he can't walk very fast because he has hurt a leg.

2) i can't get in because i have lost a key.

3) i know this story very well because i have saw the film.

4) i can't post the letter because i have not put stamp on it.

5) he can't stand up because he has ate too much.

6) they can't go on holiday because they have not saved money.

7) i know him because i have met him before.

8) we don't know how he is because we have not heard from him.

9) he won't take a cigarette because he has gave up smoking.

10) she can't get in because he has locked the door.

1 because he has hurt2 because I have lost 3 because I have seen 4 because I havent put5 because he has eaten... 6 because they havent saved... 7 I have met 8 because we havent heard 9 because he has given10 because he has locked

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