I'd say either a or d would do. But I'd personally go for d, too.
How was the secret message spread?
a.It was passed from an agent to another.
b.It was passed form one agent to other.
c.It was passed from an agent to other.
d.It was passed from one agent to another.
I think the answer is d?
what do you say?
I'd say either a or d would do. But I'd personally go for d, too.
Please be aware that I'm neither a native English speaker nor (at present) a teacher.
It's d.
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