when is a good time ____the party?let's have it today.

问题描述:

when is a good time ____the party?let's have it today.
have to have 还是having

when is a good time (for) the party? let's have it today.如果是选have的话,好像是“to have"或者”for having“吧when is a good time (to have) the party? let's have it today.when is a good time (for havi...