单项选择题
The opposition leaders（）the government for not taking action sooner.
A.warned B.criticized C.threatened D.urged
单项选择题 The TV station, in（）to massive popular demand, decided to continue the soap opera (肥皂剧).
单项选择题 The association is（）to raising funds to help the blind.
单项选择题 Since William had been seriously ill for several months, his parents were worried about（）to return to school full-time.
