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
句意：他为这个项目筹集资金的努力徒劳无功，因为没有人愿意从腰包里掏一分钱。in vain意为“徒劳”，符合句意。