__________ the concert starts, the audience will be asked to ...

★ Adverb & Compound Sentences

__________ the concert starts, the audience will be asked to turn off their cell phones, __________ they can fully enjoy the performance.

A. Before, so

B. While, so

C. If, and

D. Since, so

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__________I finish my work, I will finally have some free time for myself, __________ I can go to the movies.

A. Even though, and

B. As soon as, and

C. Unless, but

D. While, so