一、单项选择（共15小题；每小题1分，满分15分）
1．______ girl in red is ______ friend of Mary’s．
A．The, the B．The, a C．A, a D．A, the
2. It's generous _____ them to donate money to UNICEF. They think it important _____ them to
help poor children go to school.
A. to; for B. for; of C. of; to D. of; for
3. He couldn’t hide his ________ at my success and said bad words about it.
A. envy B. wisdom C. purity D. power
