I think I'll ______ _______ on Jill next week .我想下个星期顺便看望一下吉尔.

I think I'll ______ _______ on Jill next week .我想下个星期顺便看望一下吉尔.
I think I'll ______ _______ on Jill next week .我想下个星期顺便看望一下吉尔.

I think I'll ______ _______ on Jill next week .我想下个星期顺便看望一下吉尔.
drop in on/at 都有顺便看望的意思,可是后接宾语不一样
on后接表示人的名词或代词
at后接表示处所的名词或代词