my parents and i are going to spend a day out (for ) a picnic.
we plan to make some sandwiches to take with us ( for ) lunch.
he is in a kindergarten now.他现在在一个幼儿园
my parents and i are going to spend a day out (for ) a picnic.
we plan to make some sandwiches to take with us ( for ) lunch.
he is in a kindergarten now.他现在在一个幼儿园