A good worker in a key spot could,_______ he kept up production,

A good worker in a key spot could,_______ he kept up production, take all the coffee breaks he wanted, and the bosses would very likely look the other way.
A、as long as
B、as though
C、as soon as
D、as if
【正确答案】：A
【题目解析】：so long as：只要。是固定搭配。