____ will make your grandma happy if you buy a walking stick for _英语解答

____ will make your grandma happy if you buy a walking stick for her birthday
a.that
b.it
c.this
d.what

人气：496 ℃　时间：2020-04-16 01:46:38

解答

b.
it 指代后面买礼物的事.