问题
选择题
His efforts to raise money for his program were because no one showed any intention to take a cent out of their pockets.
A．in place
B．in sight
C．in effect
D．in vain
答案
答案：D
in place 在适当的位置; in sight 在视力所及范围之内; in effect 实际上; in vain 徒劳。