What does 'pick someone up' mean?

[Vunny]

English Grammar Tests, Elementary Level

ESL/EFL Test #165 "Grammar Crunch (4)", question 10

She asked him to ......... her up at 11:00 am.

(a) picking
(b) picked
(c) pick
(d) picks

English Grammar Tests, Elementary Level

ESL/EFL Test #165 "Grammar Crunch (4)", answer 10

She asked him to pick her up at 11:00 am.

Correct answer: (c) pick

Your answer was: incorrect
She asked him to picked her up at 11:00 am.
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Hi. I need help with this phrasal verb

[Mister Micawber]

In this case:

Pick someone up = go and get someone in a vehicle.
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Native English teacher at Mister Micawber's

[Beeesneees]

It is future tense. That is the time she wishes to be picked up.
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Cheers m' dears!