The low interest rates on bank loans provided an impetus for many to buy homes.
A．incentive
B．obstacle
C．reason
D．delay
正确答案：A
impetus意为“推动力”A项incentive“动机”符合题意如：Moneyisstillamajorincentiveinmostoccupations．(在许多职业中钱仍是主要的鼓励因素)其他三项obstacle“障碍”reason“原因”delay“延误推迟”都不正确
