________ if you want to do something, or you won't be able to do it well.

1. A.
   To try your best
2. B.
   Trying your best
3. C.
   Try your best
4. D.
   Unless you try your best

________ if you want to do something, or you won’t be able to do it well.

   A. To try your best  B. Trying you best   C. Try your best    D. Unless you try your best

________ if you want to do something, or you won’t be able to do it well.

   A. To try your best  B. Trying you best   C. Try your best    D. Unless you try your best

________ if you want to do something, or you won’t be able to do it well.

   A. To try your best  B. Trying you best   C. Try your best    D. Unless you try your best

________ if you want to do something, or you won't be able to do it well.

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