182k views
5 votes
____ telephones first appeared they were called talking telegraphs. a, when b,later on c, next d,then​

2 Answers

3 votes

Answer:

a.when

Step-by-step explanation:

When telephones first appeared they were called talking telegraphs.

User Xun Yang
by
8.8k points
1 vote
A. When
this makes the most sense since it is in past tense.
User Domus
by
7.2k points
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