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.
Walking alone in the dark, the boy whistled to ________ his courage.
Finally, my thanks go to my tutor, who has offered a lot of suggestions and comments on my paper and ________ every page of my draft.
The loss has not yet been ______ accurately, but it is believed to be well beyond a hundred million dollars.
If your order is ready, it will be to you tomorrow.
Miss Smith is a friend of______ .