Causative

[Valentina Errázuriz]

Can you help me to change this sentences into the Causative form?
1. He has told the plumber to repair the water tap.
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2. The carpinter should fix my door today.
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3. The gardener will cut the grass next week.
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4. She told the cleaner to wash the windows last week.
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5. The builder fixed their roof yesterday.
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[Tdol]

1. He has told the plumber to repair the water tap.
This one is difficult to turn into the causative because it is not clear whether the action has been done:
he has got the plumber to repair the water tap. (This is causative, but it suggests that the plumber has done it, not simply received the instruction)

Why don't you have a try at the others first?