A compound-complex sentence should be joined by three simple sentences with one coordinating conjuction and one subordinating conjunction.
1) Exam is coming soon, yet I haven't revised because I am too lazy.
2) I love tea and coffee, but i cannot drink much, since they contain cocaine.
3) I prefer reading nor studying, although they are parts of my life.
4) If something bad happens to you, you should ask for support, so you can overcome it.
5) Mary may go to shopping or she is in the library, though I'm not sure.
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