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8. Rewrite the sentences with the following suggestions.
Ex: How do I switch the camera on?
(he/not/ know) He doesn't know how to switch the camera on.
1. What should I say?
(he/ can't/ think)
2. Where shall we go?
(they/ not sure)
3. Where do we put the sofa?
(we/ not know)
4. What should I write my home paper about?
(I/have no idea of)
5. How should I start the engine?
(no one/ could tell)
I