we are going on a trip to the zoo( )(on this saturday ,in this saturday ,this saturday ,in

问题描述:

we are going on a trip to the zoo( )(on this saturday ,in this saturday ,this saturday ,in

this saturday,
this morning,
next monday, etc..

This saturday.
(on) is already implied in context

this Saturday

我们要去动物园()(这在本星期六,星期六,星期六,在 星期六