They were surprised that a child could work out the problem____they themselves couldn't.
—I thought you were proud of the coat I ________. —I’m afraid not. You’d better change it for another.
We have strong __________ for believing that the mine accident in Heilongjiang was due to the poor management.
Many teens don’t have enough sleep because they have too much homework, which ______ them up at night.
Food safety is ______ important, so the government spares no efforts to prevent food pollution.
—May I try the jacket on? —______,but I think it will be too small for you.