--were you busy last weekend?
5个回答

答案是wasting 或者to wasting

rather than do的结构一般只出现在:

would do rather than do,prefer to do rather than do

但是它常规的一个用法就是连词短语,也就是连接两个并列的成分,

原句可以调整为:

I devoted every effort to making an advertisement rather than (to)wasting time playing cards as usual.也就是说,

making an advertisement 和wasting time playing cards as usual是两个平行并列的短语

并且由rather than 连接.

例子:I want it on the desk rather than in the draw .

我想把它放在桌上而不是在抽屉里.on the desk 和in the draw 是平行结构

ps:本人感觉这个题太冗长,直接改成:

I devoted every effort to making an advertisement rather than playing cards as usual.

这样不是更简洁吗?