问题
选择题
.If the firms failed to make enough money, they would __________.
A．close down
B．call off
C．turn down
D．set off
答案
答案：A
close down意为“关闭”。根据所提供的情景“If the firms failed to make enough money”可判断出如果这些公司无法得到足够的钱,它们就会倒闭。call off 意为“放弃”；turn down 意为“拒绝”；set off 意为“出发,动身”。