There weren't enough chairs for everyone.  What might have to be delayed? Choose the most suitable option to answer the above question. Options：  A. bookstore  B. building  C. meeting  D. office  E. coffeehouse
C

What would a bird do if it wanted to scoop up more air? Choose the most suitable option to answer the above question. Options：  A. fly high  B. head south  C. lay eggs  D. squawk  E. spread wings
E

What is a performance by actors on tv to promote buying a certain product? Choose the most suitable option to answer the above question. Options：  A. newspaper  B. show  C. theatre  D. movie  E. commercial
E