'When you have arrived at...' vs 'When you arrive at...'

[Maxim Odizz]

English Error, Elementary Level

ESL/EFL Test #6 "Stop making plans", question 9

When you are arriving at the station, give me a ring and then I'll come and fetch you in my car.

(a) you are arriving
(b) give me a ring
(c) I'll come

English Error, Elementary Level

ESL/EFL Test #6 "Stop making plans", answer 9

When you arrive at the station, give me a ring and then I'll come and fetch you in my car.

Correct entry: you arrive
The error was: (a) you are arriving

Your answer was: ?
_________________________

Couldn't it be here: "When you have arrived at..."?

Maxim Odizz

[Mister Micawber]

.
Yes, it could.
.
_________________
Native English teacher at Mister Micawber's