on the weekend vs. at the weekend

[Condi]

English Language Tests, Intermediate level

ESL/EFL Test #169 "English prepositions exercises", question 6

We ran five laps ......... the gym and then practiced our jump shots.

(a) against
(b) across
(c) around
(d) among

English Language Tests, Intermediate level

ESL/EFL Test #169 "English prepositions exercises", answer 6

We ran five laps around the gym and then practiced our jump shots.

Correct answer: (c) around
_________________________

is it ,I go out at weekends or I GO OUT ON WEEKENDS

[Mister Micawber]

.
Americans say 'on', Brits say 'at', I believe.
.
_________________
Native English teacher at Mister Micawber's