单选It was on January the ____he came here last timeIt was on January the ____he came here last time.A thirty-one thatB thirty firstC thirty-one whenD thirty first when为什么?

问题描述:

单选It was on January the ____he came here last time
It was on January the ____he came here last time.
A thirty-one that
B thirty first
C thirty-one when
D thirty first when
为什么?