I's my grandfather's birthday___Sunday.A.this
问题描述:
I's my grandfather's birthday___Sunday.A.this
I's my grandfather's birthday___Sunday.
A.this B.on this C.on
答
a吧,有this就不用加介词了��this that next ��yesterdat tomorrow Moday����֮��������ԵĴ�����������ڼ�������ǰ���������֮��ģ�ǰ�涼���üӽ�ʣ����������ܽ��