Complex Sentence: Adverbials

Choose the correct sentence(s).

- [x] His knee was really sore after the performance, even though the dancer had been very careful.
- [ ] The dancer had been very careful, his knee was really sore after the performance.
- [x] Although the dancer had been very careful, his knee was really sore after the performance.
- [ ] Very careful had been the dancer, his knee was really sore after the performance.

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1. Correct. *Even though* links the two sentences and creates an adverbial of concession.  
2. Incorrect. There are two independent clauses here that are not linked in any way. The comma is not enough to indicate a relationship - there is information missing. Even if you read the two as seperate sentences, it has stopped making sense (if he was so careful, why was his knee sore?).  
3. The sentence starts with *although...*, creating the adverbial (subordinate) clause of concession. The comma separates from the ordinary clause that it relates to: *his knee was really sore after the performance.*  
4. *Very careful had been the dancer* has incorrect word order; *the dancer* is the subject and it should go before the verbs *had been* and adjective *very careful*. It also misses a link between the two sentences, so this is incorrect in many ways.
