None of the above choices .They had to work the night before .They did not want to ride bikes all day .Their friends could n't go and they did n't want to go by themselves .
Why did n't they want to go riding in Wai Chong ?
Maybe going cycling with wai chong they all on monday morning den go work at night . Maybe lah cos i actually working the whole day . Tml start work at 11 am . End of the month liao .