The conference will be put off until next week, _______ we will have made all the preparations.
At the beginning of a speech, it is very important to grab the audience's attention and make them interested in ____ you have to say.
The Sanlu Milk Powder event is a clear indication that food safety is a big problem; nobody can ___ all foods are secure to us, but we are sure that the situation is turning for the better.
—I am going to travel to America.Would you consider telling me about your experiences there?—__.Let's discuss it over dinner.
I don't think the experiment is ___ failure, because it has provided us with ___valuable experience for our future tests.
---I’m sorry! I would have taken him to hospital if I had known he was seriously ill.--- But ______ .