Although, Despite & However
Is the sentence correct? If it is correct, answer 'True' and if it is incorrect, answer 'False'.
1. In spite of exhausted, I continued working.
You are in the state of being exhausted
2. I thought it was OK, though many found it rather difficult.

3. I did it, though I didn't enjoy it.

4. Despite the fact that it was very expensive, I bought it.

5. Despite I tried my best, I failed.
Despite trying...
6. Although I tried my best, I was unsuccessful.

7. However hard I tried, I just couldn't manage it.

8. Though exhausted, I continued working.

9. In spite that no one helped me, I still managed to do it.
Although no-one... OR In spite of the fact that no-one...
10. Despite of being easy, many failed the test.
Despite being...
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I usually fail on this test, I just can't get it! Can you help me with each sentence. If true or false and why???