i was on vacation last mouth(last mouth) i bought something for my father(my father)变否定,疑问句

问题描述:

i was on vacation last mouth(last mouth) i bought something for my father(my father)变否定,疑问句

I wasn't on vacation last month .
Were you on vacation last month?
I didn't buy anything for my father.
Did you buy anything for your father?