1. Don’t be afraid of asking for help _______ it is needed.
A. unless B. since
C. although D. when
2. A good storyteller must be able to hold his listeners’ curiosity ________ he reaches the end of the story.
A. when B. unless
C. after D. until
3. _______ I know the money is safe, I shall not worry about it.
A. Even though B. Unless
C. As long as D. while
4 You will succeed in the end ____ you give up halfway.
A. even if B. as though
C. as long as D. unless