She has set a new record ,that is,the sales of her latest book _ 50 million.A have reachedB has reached
问题描述：
She has set a new record ,that is,the sales of her latest book _ 50 million.A have reached
B has reached
答
b
答
B
答
A have reached
主词是指the sales 是复数,所以用have reached,指的是最后那本书的销量到达五千万
答
B,sales是销售的意思，不可数