Melyik a helyes válasz, és miért? (angol)

Do you know ... I met at the party yesterday?

A, with whom

B, who

C, with who

D, who with

Szerintem A, vagy B.

.... like ice-cream.

A, Every children -> sztem ez nem lehetséges

B, Every child

C, All of children

D, All children

C és D ugyanaz, nem?

Unfortunately, ... of the secretaries stays in the office after 6 o'clock.

A, all

B, no one

C, nobody

D, neither

talán D