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 think you must be mistaken about seeing him at the theatre; I’m sure he _____ abroad all week.
I found her sitting in the corner, reading _____ newspaper, with _____ in her eyes.
They haven’t arrived yet but we _____ them at any moment.
____ has helped to save the drowning girl is worth praising.
I feel sure I _____ her before somewhere.