conditional sentence: I'll believe it when I see it

[Gelawani]

English Grammar Tests, Elementary Level

ESL/EFL Test #34 "Responses (7)", question 10

Frank: 'They say that all this rubbish is going to be taken away tomorrow.'
Jill: '.........'

(a) I believe when I see it.
(b) I'll believe it when seen.
(c) I'll believe it when I see it.
(d) I see it when I believe.

English Grammar Tests, Elementary Level

ESL/EFL Test #34 "Responses (7)", answer 10

Frank: 'They say that all this rubbish is going to be taken away tomorrow.'
Jill: 'I'll believe it when I see it.'

Correct answer: (c) I'll believe it when I see it.
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Is this a conditional sentence?

Gelawani

[Conchita]

Yes, it's a first conditional, also called conditional type 1, which refers to possible future situtations.