76. The boy's progress was so rapid that everybody was surprised./ The boy made such rapid progress that it surprised everybody.
78. The speaker's talk was so long that most of the audience felt sleepy./ The speaker gave such a long talk that most of the audience felt sleepy.
79. We watched such an exciting competition that we didn't want to go home./ The competition we watched was so exciting that we didn't want to go home.
80. It was such an excellent show that we all enjoyed it./ The show was so excellent that we all enjoyed it.
81. The weather was so hot that you could fry an egg on the side walk./ It was such hot weather that you could fry an egg on the side walk.
82. She talked so fast that I couldn't understand her./ She was such a fast speaker that I couldn't understand her.
