II.单项选择（共12小题；每小题1分，满分12分）
21. ________ work has been done to improve the people’s living standard.
A. A large amount of B. A large number of C. A great deal D. A great many
22. The man _______ the little boy and said , “You are so clever and lovely . I love you very much.”
A. glared at B. aimed at C. stared at D. laughed at
