We left the manager a note_ he wanted to know where we were

题目

We left the manager a note_ he wanted to know where we were
这地方答案是in case ,用so that 也说的通

答案

so that 因此 不通的
we left the manager a note so that he could know where we were.
我们给经理留了张条,所以经理能知道我们在哪儿
in case 以防万一
我们给经理留了张条,免得万一他想知道我们在哪儿