David was going to deliver his campaign speech for class president. He’d been up all night rehearsing in his room. He practically knew the speech by heart. However, when he got up to present at the school assembly, he completely forgot most of the speech. What could David have done in order to make his presentation better?

we need to see the examples!

the third answer is right : )

i hope this you with your work! : )

21 balloons is the story of professor william sherman's travels.

in 1883, he set off from san francisco for a balloon ride over the pacific and was found a month later floating with 21 balloons in the atlantic ocean. this seemed an astounding feat and everyone wanted to know what had happened.    

professor sherman was loyal, however, and said he would tell his tale first to the western american explorers club in san francisco, of which he was a member. this built up suspense for several chapters before he began to tell of the wonders of his adventures and the amazing island of krakatoa, an island which had just been blown up by a volcano.  

the residents of krakatoa are all millionaires who live under a "gourmet government" of their own devising. we get to see all the incredible adventures that creative people with unlimited resources would create according to the author.