Question

— Do you often go swimming_____ Sunday mornings?— Yes. Why not _____with me this Sunday? A．

— Do you often go swimming_____ Sunday mornings?— Yes. Why not _____with me this Sunday? A．on, go B．in; to go C．on; going D．in going

Answer 1

A

介词on与Why not的用法。在某一天，或某天某段时间用介词on，Why not do sh.?指“为什么不做某事”，do前是省略to的不定式。故选择A。