He some French while he was away on a business trip in Paris.
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.
Going on a trip into ______ space must be quite ______ exciting experience.
—I am going to travel to Jamaica. Would you consider telling me about your experiences there?—_ _. Let's discuss it over dinner.
– Where does your brother work, Jane?-- In America. But he __________in China for 5 years.
But for his father’s sudden illness, he would never thought of breaking this ______with you.