21.What ________ pity that you couldn’t be there to receive ________ prize.
A. a; a B. the; a C. a; the D. the; the
22. In 1939, Hitler ________ war against Poland, which started the Second World War.
A. announced B. broadcast C. declared D. advertised
23. I was disappointed with the film. I had expected ________ to be much better.
A. that B. it C. this D. one
24. The good thing about children is that they ________ very easily to new environments.
A. attach B. apply C. admit D. adapt