1. It was too noisy outside. Not until _______ at the top of my voice _______ his head.
   A. I shouted; did he turn  B. I shouted; had he turned C. did I shout; did he turn   D. had I shouted; he turned
2. Mr. White promised to help me and _______ the next day.  
   A. neither he did    B. so he did  C. neither did he    D. so did he