34 “I’d like to give my thanks to those__________help my son will be able to survive his terrible disease,” said the woman on TV

Helen was too angry to say _________.

It was really noisy in the workshop. Not until ______ at the top of my voice ______ to look at me.

Only when your identity has been checked ________.

The aim of the trial operation of Shanghai Expo was to _______ problems, if any, so that the organizers could make changes accordingly.