This is Frank speaking

[Guest]

Test No. errors/elem-9 "Sorry, Wrong Number", question 1

Hello Mike, this is Frank speak. Could you give me Anna's telephone number, please?

(a) is
(b) speak
(c) me

Test No. errors/elem-9 "Sorry, Wrong Number", answer 1

Hello Mike, this is Frank speaking. Could you give me Anna's telephone number, please?

Correct entry: speaking
The error was: (b) speak
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what was the right answer?

[Alan]

Speaking is correct as shown on the screen.
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English as a Second Language
You can read my ESL story Present Simple